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DSSSB Lab Assistant 2021: 28 August, Laboratory Assistant (Physics), Shift 2

  • Date: 28 August 2021
  • Shift: 2
  • Language: Bilingual
  • 158 pages
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                                       Education Consultant India Ltd.
 Notations :
 1.Options shown in green color and with icon are correct.
 2.Options shown in red color and with icon are incorrect.



 Question Paper Name :                                                        28AugS2Rocket1Physics
 Subject Name :                                                               Laboratory Assistant (Physics)
 Creation Date :                                                              2021-08-28 15:19:30
 Duration :                                                                   120
 Total Marks :                                                                200
 Display Marks:                                                               Yes
 Calculator :                                                                 None
 Magnifying Glass Required? :                                                 No
 Ruler Required? :                                                            No
 Eraser Required? :                                                           No
 Scratch Pad Required? :                                                      No
 Rough Sketch/Notepad Required? :                                             No
 Protractor Required? :                                                       No
 Show Watermark on Console? :                                                 Yes
 Highlighter :                                                                No
 Auto Save on Console? ( SA type of questions will be always auto saved ) :   No



                                                             General Ability
 Group Number :                                                               1
 Group Id :                                                                   1034351
 Group Maximum Duration :                                                     0
 Group Minimum Duration :                                                     0
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Show Attended Group? :                                                 No
Edit Attended Group? :                                                 No
Break time :                                                           0
Group Marks :                                                          20
Is this Group for Examiner? :                                          No



                                                     General Ability
Section Id :                                                           1034351
Section Number :                                                       1
Section type :                                                         Online
Mandatory or Optional :                                                Mandatory
Number of Questions :                                                  20
Number of Questions to be attempted :                                  20
Section Marks :                                                        20
Enable Mark as Answered Mark for Review and Clear Response :           Yes
Sub-Section Number :                                                   1
Sub-Section Id :                                                       1034351
Question Shuffling Allowed :                                           Yes

Question Number : 1 Question Id : 1034351 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Fill up the blank of the series:

YB7, X6C, WD8, ______
Options :
1.   E5V
2.   V9E
3.   E9V
4.   V5E
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Question Number : 1 Question Id : 1034351 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 ृंखला के र   थान को भर:

YB7, X6C, WD8, ______
Options :
1.   E5V
2.   V9E
3.   E9V
4.   V5E


Question Number : 2 Question Id : 1034352 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In a certain code, COUSIN is written as UOCSIN. Which one among the options can be a similar word and its code?
Options :
1.    LETTER:TELTER
2.    CXEEPT:EXCETP
3.    GROUPS:SPUORG
4.    OTHER:EHTOR


Question Number : 2 Question Id : 1034352 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक िनि त कोड़ म, COUSIN को UOCSIN के      प म िलखा गया है । िवक   ों म से कौन सा एक, समान श   और उसका कोड हो सकता है ?
Options :
1.   LETTER:TELTER
2.   CXEEPT:EXCETP
3.   GROUPS:SPUORG
4.   OTHER:EHTOR
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Question Number : 3 Question Id : 1034353 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Out of the given options, three are similar in a certain manner. However, one option is NOT like the other three. Select the option which is
different from the rest.
Options :
1.    Pony
2.    Cub
3.    Puppy
4.    Foal


Question Number : 3 Question Id : 1034353 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िदए गए िवक        ों म से तीन एक िनि त तरीके से समान ह। हालाँ िक, एक िवक   अ    तीन की तरह नहीं है । उस िवक     का चयन कर जो अ       से अलग है ।
Options :
1.   टट् टू
2.   िशशुचर
3.   िप       ा
4.   बछे ड़ा


Question Number : 4 Question Id : 1034354 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Out of the given options, three are similar in a certain manner. However, one option is NOT like the other three. Select the option which is
different from the rest.
Options :
1.    Lucknow
2.    Tokyo
3.    New Delhi
4.    Islamabad
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Question Number : 4 Question Id : 1034354 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िदए गए िवक      ों म से तीन एक िनि त तरीके से समान ह। हालाँ िक, एक िवक   अ   तीन की तरह नहीं है । उस िवक   का चयन कर जो अ   से अलग है ।
Options :
1.   लखनऊ
2.   टो     ो
3.   नई िद      ी
4.   इ    ामाबाद


Question Number : 5 Question Id : 1034355 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the option that is related to the third term on the same basis as the second term is related to the first term.
Thin wires : Ductile:: Thin sheets: ?
Options :
1.   Dense
2.   Shallow
3.   Malleable
4.   Non-Malleable


Question Number : 5 Question Id : 1034355 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
उस िवक का चयन कर जो तीसरे पद से उसी कार से संबंिधत है िजस कार से दू सरा पद पहले पद से संबंिधत है ।
पतले तार : त :: पतली चादर : ?
Options :
1.   गाढ़ा
2.   िछछला
3.   आघातवधनीयता
4.   गैर-आघातवधनीयता
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Question Number : 6 Question Id : 1034356 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
If Covid-19 is called BNUHC-18 then NURSES may be called ?
Options :
1.   OVSTFT
2.   SVOTFT
3.   MTQRDR
4.   QTMRDR


Question Number : 6 Question Id : 1034356 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद कोिवड-19 को BNUHC-18 कहा जाता है तो NURSES को      ा कहा जा सकता है ?
Options :
1.   OVSTFT
2.   SVOTFT
3.   MTQRDR
4.   QTMRDR


Question Number : 7 Question Id : 1034357 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In a certain code, FILM is written as 7101314 and CITY is written as 4102126 then ACTRESS may be written as:
Options :
1.    132051919
2.    201941818
3.    242162020
4.    123502020


Question Number : 7 Question Id : 1034357 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
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Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक िनि त कोड म, FILM को 7101314 के       प म िलखा गया है और CITY को 4102126 के      प म िलखा गया है , तो ACTRESS को िलखा जा सकता है :
Options :
1.   132051919
2.   201941818
3.   242162020
4.   123502020


Question Number : 8 Question Id : 1034358 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Pointing towards Tapu, Kiyansh said his mother is the only sibling to my father's child. How is Kiyansh related to Tapu ?
Options :
1.   brother
2.   mother’s brother
3.   sister’s son
4.   brother's son


Question Number : 8 Question Id : 1034358 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
ट ू की ओर इशारा करते ए िकयां श ने कहा िक उसकी माता मेरे िपता के ब े की एकमा सहोदर है । िकयां श ट ू से कैसे संबंिधत है ?
Options :
1.   भाई
2.   मामा
3.   बहन का पु
4.   भाई का पु


Question Number : 9 Question Id : 1034359 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
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6 students Chaman, Karman, Harman, Manan, Charan and Karmal participated in a race to win Gold, Silver and Bronze medals by winning the
first 3 places respectively.
1. Chaman who finished just behind Karman came last.
2. Harman got a medal by just beating Manan but he lost to Charan.
Which of the following did not win any medal?

Options :
1.   Manan
2.   Karman
3.   Charan
4.   Karmal


Question Number : 9 Question Id : 1034359 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
6 छा चमन, कमन, हरमन, मनन, चरन और करमल ने दौड़ म भाग िलया और मश: थम 3 थान जीतकर                            ण, रजत और कां       पदक जीते।
1. चमन िजसने कमन के ठीक पीछे समा िकया, वह अंितम थान पर आया।
2. हरमन ने मनन को िसफ हराकर पदक हािसल िकया लेिकन वह चरन से हार गया।
िन िल खत म से िकसने कोई पदक नहीं जीता?
Options :
1.   मनन
2.   कमन
3.   चरन
4.   करमल


Question Number : 10 Question Id : 10343510 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the question given below, an assertion is given, followed by a reason. You have to decide whether the assertion is true, reason is true or both
are true and if the reason is the correct explanation of the assertion.
Assertion- There are severe landslides and rains in the states of Himachal Pradesh.
Reason- Natural disasters are the big problems to humanity.
Options :
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1.   Assertion is true, reason is false
2.   Assertion is false, reason is true
3.   Both assertion and reason are true, reason is the correct explanation of the assertion
4.   Both assertion and reason are true, reason is not the correct explanation of the assertion


Question Number : 10 Question Id : 10343510 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
नीचे िदए गए  म, एक अिभकथन िदया गया है , उसके बाद एक कारण िदया गया है । आपको यह तय करना है िक                ा अिभकथन स      है , कारण स   है या
दोनों स ह और यिद कारण, अिभकथन की सही ा ा है ।
अिभकथन- िहमाचल दे श रा ों म भयंकर भू लन और बा रश हो रही है ।
कारण- ाकृितक आपदाएं मानवता के िलए बड़ी सम ा ह।
Options :
1.   अिभकथन स       है , कारण अस    है
2.   अिभकथन अस        है कारण स     है
3.   अिभकथन और कारण दोनों स          ह, कारण कथन की सही        ा   ा है
4.   अिभकथन और कारण दोनों स          ह, कारण कथन की सही        ा   ा नहीं है


Question Number : 11 Question Id : 10343511 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the question given below, a statement is given, followed by two arguments I and II. You have to consider the statement to be true even if it
seems to be at variance from commonly known facts. You have to decide which of the given argument, if any, follows from the given statement.

Statement- Doctors have to work in the rural areas for 3-4 years for further promotion.
Argument I- Yes, This would help to solve the medical problems of rural areas.
Argument II- No, Doctors would be under emotional stress as many have not lived without their families.
Options :
1.   Only argument I is strong
2.   Only argument II is strong
3.   Neither I nor II is strong
4.   Both arguments are strong
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Question Number : 11 Question Id : 10343511 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
नीचे िदए गए  म, एक कथन िदया गया है , िजसके बाद दो तक I और II िदए गए ह। आपको उन कथनों को स मानना है , भले ही यह सामा तः     ात त
से िभ तीत हो। आपको यह िनणय लेना है िक िदए गए तक म से कौन सा, यिद कोई हो, तो िदए गए कथन म से अनुसरण करता है ।

कथन- िचिक कों को आगे की पदो ित के िलए ामीण े ों म 3-4 वष तक काम करना पड़ता है ।
तक I- हाँ , इससे ामीण े ों की िचिक ा सम ाओं को हल करने म मदद िमलेगी।
तक II- नहीं, िचिक क भावना क तनाव म होंगे ोंिक कई लोग अपने प रवारों के िबना नहीं रह सकते ह।
Options :
1.   केवल तक I मजबूत है
2.   केवल तक II मजबूत है
3.   न तो I और न ही II मजबूत है
4.   दोनों तक मजबूत ह


Question Number : 12 Question Id : 10343512 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the option that is related to the third term on the same basis as the second term is related to the first term.
15 : 32 :: 18 : ?
Options :
1.    31
2.    30
3.    34
4.    35


Question Number : 12 Question Id : 10343512 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
उस िवक का चयन कर जो तीसरे पद से उसी कार से संबंिधत है िजस कार से दू सरा पद पहले पद से संबंिधत है ।
15 : 32 :: 18 : ?
Options :
1.    31
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2.   30
3.   34
4.   35


Question Number : 13 Question Id : 10343513 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Complete the following series:

5 ,7, 25, 131, ___
Options :
1.     921
2.     131
3.     925
4.     224


Question Number : 13 Question Id : 10343513 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत ंखला को पूरा कर:

5,7, 25, 131, ___
Options :
1.    921
2.    131
3.    925
4.    224


Question Number : 14 Question Id : 10343514 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the diagram can be said to depict these statements?
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No Punjabi (P) is Tamil (T) and some Tamils (T) are Muslims (M).
Options :




1.




2.




3.




4.



Question Number : 14 Question Id : 10343514 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
कौन सा आरे ख इन कथनों को दशाने के िलए कहा जा सकता है ?
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कोई पंजाबी (P) तिमल (T) नहीं है और कुछ तिमल (T) मु       म (M) ह।
Options :




1.




2.




3.




4.



Question Number : 15 Question Id : 10343515 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A football player is running towards the goal which is to the west, then he turns to his right and runs 150 meters and then turns around 180
degrees and starts to run. In which direction is he running now?
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Options :
1.   East
2.   West
3.   North
4.   South


Question Number : 15 Question Id : 10343515 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक फ़ुटबॉल खलाड़ी गॉल की ओर दौड़ रहा है जो पि म की ओर है , िफर वह अपनी दाएं ओर मुड़ता है और 150 मीटर दौड़ता है और िफर 180 िड ी के
आसपास घूमता है और दौड़ना शु करता है । वह अब िकस िदशा म दौड़ रहा है ?
Options :
1.   पूव
2.   पि म
3.   उ र
4.   दि ण


Question Number : 16 Question Id : 10343516 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A man started walking from his house and moved 11 meters to north and then turned to east and walked another 60 meters. How far he is from
his starting point?
Options :
1.    69 meters
2.    49 meters
3.    41 meters
4.    61 meters


Question Number : 16 Question Id : 10343516 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक         अपने घर से चलना शु   करता है और 11 मीटर उ र की ओर चलता है और िफर पूव की ओर मुड़ता है और 60 मीटर चलता है । वह अपने
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आरं िभक िबंदु से िकतनी दू र है ?
Options :
1.    69 मीटर
2.    49 मीटर
3.    41 मीटर
4.    61 मीटर


Question Number : 17 Question Id : 10343517 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which answer figure would complete the question figure?




Options :




1.
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2.




3.




4.



Question Number : 17 Question Id : 10343517 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
कौन सी उ र आकृित     आकृित को पूरा करे गी?
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Options :




1.




2.
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3.




4.



Question Number : 18 Question Id : 10343518 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Some letters are created by joining some lines. Which option has the most types of symmetry?
Options :




1.
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2.




3.




4.



Question Number : 18 Question Id : 10343518 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
कुछ अ र कुछ रे खाओं को जोड़ने से बनते ह। िकस िवक   म सबसे अिधक कार की समिमित है ?
Options :




1.
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2.




3.




4.



Question Number : 19 Question Id : 10343519 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
If you had to draw a mirror image of the sketch given in the question, your drawing would match closely to which of the given options? You are
free to place the mirror at the top, bottom, left or right of the given image.
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Options :




1.




2.
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3.




4.



Question Number : 19 Question Id : 10343519 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद आपको       म िदए गए रे खािच का दपण ितिबंब बनाना हो, िदए गए िवक   ों म से िकससे िनकटता से आपकी रे खािच मेल खाएगी? आप दी गई छिव
के ऊपर, नीचे, बाएं या दाएं दपण रखने के िलए तं ह।
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 23 of 158
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Text of page 23
Options :




1.




2.
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 24 of 158
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Text of page 24
3.




4.



Question Number : 20 Question Id : 10343520 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Suppose we use different colours to paint the triangles in the given figure in such a way that no two colours will overlap, then what is the
maximum number of colours needed?
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 25 of 158
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Text of page 25
Options :
1.   14
2.   18
3.   16
4.   20


Question Number : 20 Question Id : 10343520 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
मान लीिजए िक हम दी गई आकृित म ि भुजों को रं गने के िलए अलग-अलग रं गों का इस तरह से उपयोग करते ह िक कोई भी दो रं ग पर   र ा   न हों, तो
अिधकतम िकतने रं गों की आव कता होगी?
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 26 of 158
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Text of page 26
Options :
1.   14
2.   18
3.   16
4.   20



                                                 General Awareness
Group Number :                                                 2
Group Id :                                                     1034352
Group Maximum Duration :                                       0
Group Minimum Duration :                                       0
Show Attended Group? :                                         No
Edit Attended Group? :                                         No
Break time :                                                   0
Group Marks :                                                  20
Is this Group for Examiner? :                                  No



                                                 General Awareness
Section Id :                                                   1034352
Section Number :                                               1
Section type :                                                 Online
Mandatory or Optional :                                        Mandatory
Number of Questions :                                          20
Number of Questions to be attempted :                          20
Section Marks :                                                20
Enable Mark as Answered Mark for Review and Clear Response :   Yes
Sub-Section Number :                                           1
Sub-Section Id :                                               1034352
Question Shuffling Allowed :                                   Yes
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 27 of 158
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Question Number : 21 Question Id : 10343521 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Sanctum (garbhagriha literally ‘womb-house’) , is one of the basic form of:
Options :
1.   Hindu Temple
2.   Buddhist Temple
3.   Gurudwara
4.   Synagogue


Question Number : 21 Question Id : 10343521 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
स म (गभगृह का शा     क अथ 'गभ-घर') है , िन के मूल   प म से एक है :
Options :
1.   िहं दू मंिदर
2.   बौ    मंिदर
3.   गु    ारा
4.   य दी मंिदर


Question Number : 22 Question Id : 10343522 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The popular temple architecture style in northern India:
Options :
1.   Garbh
2.   Nagara
3.   Niwas
4.   Aalya


Question Number : 22 Question Id : 10343522 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 28 of 158
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Correct Marks : 1 Wrong Marks : 0.25
उ र भारत म लोकि य मंिदर वा   ुकला शैली:
Options :
1.   गभ
2.   नागर
3.   िनवास
4.   आिलया


Question Number : 23 Question Id : 10343523 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Microeconomics is the study of:
Options :
1.   Behaviour of individual economic Agent
2.   Study of markets
3.   Study of economics as a whole
4.   Study of Banks


Question Number : 23 Question Id : 10343523 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 ि अथशा       िन का अ यन है :
Options :
1.          गत आिथक एजट का      वहार
2.   बाजारों का अ यन
3.   सम      प से अथशा   का अ यन
4.   बकों का अ यन


Question Number : 24 Question Id : 10343524 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 29 of 158
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Text of page 29
What is a short run in production function?
Options :
1.   At least one of the production factors is fixed
2.   All production factors vary
3.   All Production factors are equal
4.   Production factor does not matter


Question Number : 24 Question Id : 10343524 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
उ ादन फलन म शॉट रन          ा है ?
Options :
1.   उ ादन कारक म से        ूनतम एक िनि त है
2.   सभी उ ादन कारक िभ ह
3.   सभी उ ादन कारक समान है
4.   उ ादन कारक से कोई फक नहीं पड़ता


Question Number : 25 Question Id : 10343525 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the scientific name for table sugar?
Options :
1.   Carbohydrates
2.   Fructose
3.   Glucose
4.   Sucrose


Question Number : 25 Question Id : 10343525 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
टे बल शुगर का वै ािनक नाम      ा है ?
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 30 of 158
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Text of page 30
1.   काब हाइडे ट
2.    ु     ोज
3.        ूकोज़
4.   इ ुशकरा


Question Number : 26 Question Id : 10343526 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The process due to which fatty food becomes rancid is called:
Options :
1.   Oxidation
2.   Reduction
3.   Dehydration
4.   Hydration


Question Number : 26 Question Id : 10343526 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
वह ि या िजसके कारण वसायु     भोजन बासी हो जाता है , उसे कहा जाता है :
Options :
1.   ऑ      ीकरण
2.        ूनीकरण
3.   िनजलीकरण
4.   जलयोजन


Question Number : 27 Question Id : 10343527 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the name and chemical formula of laughing gas?
Options :
1.   Nitrogen dioxide (NO2)
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 31 of 158
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Text of page 31
2.   Nitrous oxide (N2O)
3.   Nitric oxide (NO)
4.   Nitrate (NO3)


Question Number : 27 Question Id : 10343527 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
हास गैस का नाम और रासायिनक सू         ा है ?
Options :
1.   नाइटोजन डाइऑ         ाइड (NO2)
2.   नाइट् स ऑ     ाइड (N2O)
3.   नाइिटक ऑ        ाइड (NO)
4.   नाइटे ट (NO3)


Question Number : 28 Question Id : 10343528 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Port Blair is located in:
Options :
1.   North Andaman Island
2.   Car Nicobar
3.   South Andaman Island
4.   Little Andaman Island


Question Number : 28 Question Id : 10343528 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
पोट ेयर थत है :
Options :
1.   उ रअ        मान ीप
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 32 of 158
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2.   कार िनकोबार
3.   दि ण अ     मान ीप
4.   छोटा अ    मान ीप


Question Number : 29 Question Id : 10343529 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Indira Point, the southernmost point of India lies in which of the following island?
Options :
1.    Car Nicobar Island
2.    Little Nicobar Island
3.    North Andaman Island
4.    Great Nicobar Island


Question Number : 29 Question Id : 10343529 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
भारत का सबसे दि णी पोइं ट, इं िदरा पोइं ट िन िल खत म से िकस ीप म थत है ?
Options :
1.   कार िनकोबार ीप
2.   छोटा िनकोबार ीप
3.   उ रअ      मान ीप
4.   बड़ा िनकोबार ीप


Question Number : 30 Question Id : 10343530 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The practice of women having several husbands is called:
Options :
1.   Polygyny
2.   Polyandry
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 33 of 158
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3.   Exogamy
4.   Endogamy


Question Number : 30 Question Id : 10343530 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
  यों के अनेक पित रखने की था को कहा जाता है :
Options :
1.   ब प ी        (पिलजनी)
2.   ब पित
3.   बिहयु न (ए       ोगामी)
4.   अंतिववाह (ए ागमी)


Question Number : 31 Question Id : 10343531 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Since the 17th century Pondicherry has been a colony of which country till its independence?
Options :
1.   Great Britain
2.   Netherlands
3.   France
4.   Spain


Question Number : 31 Question Id : 10343531 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
17वीं शता ी से पोंडीचेरी अपनी   तं ता तक िकस दे श का उपिनवेश रहा है ?
Options :
1.    ेट ि टे न
2.   नीदरलड
3.     ां स
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 34 of 158
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Text of page 34
4.     ेन


Question Number : 32 Question Id : 10343532 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Indian 'Home Rule movement' was started by _____.
Options :
1.   Bal Gangadhar Tilak and Annie Besant
2.   Mahatma Gandhi
3.   Subhash Chandra Bose
4.   Sardar Vallabhbhai Patel


Question Number : 32 Question Id : 10343532 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
भारतीय 'होम    ल आं दोलन' _____ ारा शु   िकया गया था।
Options :
1.   बाल गंगाधर ितलक और एनी बेसे
2.   महा ा गां धी
3.   सुभाष चं बोस
4.   सरदार व    भभाई पटे ल


Question Number : 33 Question Id : 10343533 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
When did the Simon Commission come to India?
Options :
1.   1917
2.   1942
3.   1930
4.   1928
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 35 of 158
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Text of page 35
Question Number : 33 Question Id : 10343533 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
साइमन कमीशन भारत म कब आया ?
Options :
1.   1917
2.   1942
3.   1930
4.   1928


Question Number : 34 Question Id : 10343534 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
'Bhupen Hazarika' is a famous Indian personality belonging to which of the following fields?
Options :
1.   Writing
2.   Acting
3.   Singing
4.   Politics


Question Number : 34 Question Id : 10343534 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
'भूपेन हाज रका' िन िल खत म से िकस े से संबंिधत िस   भारतीय       ह?
Options :
1.   लेखन
2.   अिभनय
3.   गाना
4.   राजनीित
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 36 of 158
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Question Number : 35 Question Id : 10343535 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Who among the following were the first recipients of ' Bharat Ratna Award?'
Options :
1.   Dr Rajendra Prasad
2.   C. Rajagopalachari
3.   Pt. Jawaharlal Nehru
4.   Sardar Vallabhbhai Patel


Question Number : 35 Question Id : 10343535 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन 'भारत र पुर   ार' के पहले ा कता थे?
Options :
1.   डॉ राजे   साद
2.   सी. राजगोपालाचारी
3.   पं. जवाहरलाल नेह
4.   सरदार व   भभाई पटे ल


Question Number : 36 Question Id : 10343536 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The term 'Republic' means:
Options :
1.   Head of state is elected
2.   Head of state is monarch
3.   Oligarchy
4.   Ruler


Question Number : 36 Question Id : 10343536 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 37 of 158
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Text of page 37
Correct Marks : 1 Wrong Marks : 0.25
गणतं ' श         का अथ है :
Options :
1.   रा     के मुख चुने जाते ह
2.   रा     का मुख राजा होता है
3.   अ      तं
4.   शासक


Question Number : 37 Question Id : 10343537 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following set-up of governance, the Indian Government has?
Options :
1.   Federal
2.   Unitary
3.   Quasi-Federal
4.   Fully Independent


Question Number : 37 Question Id : 10343537 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सी शासन         व था, भारत सरकार के पास है ?
Options :
1.   संघीय
2.   एका क
3.   अध संघीय ( ािस-फ़ेडरल)
4.   पूरी तरह        तं


Question Number : 38 Question Id : 10343538 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 38 of 158
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Text of page 38
Indian athlete Priyanka Goswami is participating in 2020 Tokyo Olympics in which sport?
Options :
1.   Hockey
2.   Cricket
3.   Wrestling
4.   Race walking


Question Number : 38 Question Id : 10343538 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
भारतीय एथलीट ि यंका गो    ामी 2020 टो   ो ओलंिपक म िकस खेल म भाग ले रही ह?
Options :
1.   हॉकी
2.   ि केट
3.   कु     ी
4.   रे स वॉिकंग


Question Number : 39 Question Id : 10343539 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Who among the following is the first Indian female swimmer who qualified for 2020 Tokyo Olympics?
Options :
1.   Shikha Tondon
2.   Maana Patel
3.   Richa Mishra
4.   Saloni Dalal


Question Number : 39 Question Id : 10343539 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सी पहली भारतीय मिहला तैराक ह िजसने 2020 टो       ो ओलंिपक के िलए    ालीफाई िकया है ?
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 39 of 158
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Text of page 39
1.   िशखा टं डन
2.   माना पटे ल
3.   रचा िम ा
4.   सलोनी दलाल


Question Number : 40 Question Id : 10343540 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
‘Believe in Sports’ campaign has been launched by:
Options :
1.    Sports Authority of India (SAI)
2.    Fédération Internationale de Football (FIFA)
3.    International Olympic Committee (IOC)
4.    International Cricket Council (ICC)


Question Number : 40 Question Id : 10343540 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
'िबलीव इन   ोट् स' अिभयान िन   ारा शु   िकया गया है :
Options :
1.   भारतीय खेल ािधकरण
2.   फ़ेडरे शन इं टरनेशनेल डी फ़ुटबॉल
3.   अंतररा ीय ओलंिपक सिमित
4.   अंतरा ीय ि केट प रषद



                                                        Arithmetic Ability
Group Number :                                                        3
Group Id :                                                            1034353
Group Maximum Duration :                                              0
Group Minimum Duration :                                              0
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 40 of 158
Page 40 of 158
Text of page 40
Show Attended Group? :                                                No
Edit Attended Group? :                                                No
Break time :                                                          0
Group Marks :                                                         20
Is this Group for Examiner? :                                         No



                                                   Arithmetic Ability
Section Id :                                                          1034353
Section Number :                                                      1
Section type :                                                        Online
Mandatory or Optional :                                               Mandatory
Number of Questions :                                                 20
Number of Questions to be attempted :                                 20
Section Marks :                                                       20
Enable Mark as Answered Mark for Review and Clear Response :          Yes
Sub-Section Number :                                                  1
Sub-Section Id :                                                      1034353
Question Shuffling Allowed :                                          Yes

Question Number : 41 Question Id : 10343541 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
If + means ÷, ÷ means -, - means × and × means +, then 40×18+2÷4-3 is:
Options :
1.    23
2.    64
3.    37
4.    46


Question Number : 41 Question Id : 10343541 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 41 of 158
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Text of page 41
यिद + का अथ ÷ है , ÷ का अथ - है , - का अथ × है और × का अथ + है , तो 40×18+2÷4-3 है :
Options :
1.   23
2.   64
3.   37
4.   46


Question Number : 42 Question Id : 10343542 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In an examination a student was asked to find 3/14 of a certain number. By mistake, he found 3/4 of it. His answer was 90 more than the correct
answer. Then the number is:
Options :
1.    168
2.    274
3.    98
4.    196


Question Number : 42 Question Id : 10343542 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक परी ा म एक छा को िनि त सं        ा का 3/14 ात करने के िलए कहा गया था। गलती से, उसने उसका 3/4 भाग ात कर िलया। उसका उ र सही उ र
से 90 अिधक था। िफर सं ा है :
Options :
1.    168
2.    274
3.    98
4.    196


Question Number : 43 Question Id : 10343543 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 42 of 158
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Text of page 42
If a shopkeeper gives 20% discount and then 10% discount on a book which has the marked price 200, how much would be the selling price (in
Rs) of the book?
Options :
1.     163
2.     144
3.     124
4.     116


Question Number : 43 Question Id : 10343543 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद दु कानदार एक पु    क पर 20% की छूट दे ता है और िफर उस पर 10% की छूट दे ता है िजसका अंिकत मू    200 है , तो पु   क का िव य मू   ( पए म)
िकतना होगा?
Options :
1.   163
2.   144
3.   124
4.   116


Question Number : 44 Question Id : 10343544 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Average of a, b, c is X and ab + bc + ac = 3. What is the average value of a2,b2,c2 ?
Options :
1.   3X2 - 2
2.   3X2
3.   9X2 - 4
4.   3X - 4


Question Number : 44 Question Id : 10343544 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 43 of 158
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Text of page 43
a, b, c का औसत X है और ab + bc + ac = 3 है । a2,b2,c2 का औसत मान          ा है ?
Options :
1.   3X2 - 2
2.   3X2
3.   9X2 - 4
4.   3X - 4


Question Number : 45 Question Id : 10343545 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 The average of marks scored by the students of a class is 75. The average of marks of the girls in the class is 80 and that of boys is 70. What is
the percentage of girls in the class?
Options :
1.    60
2.    40
3.    50
4.    45


Question Number : 45 Question Id : 10343545 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक क ा के छा ों ारा ा      अंकों का औसत 75 है । क ा म लड़िकयों के अंकों का औसत 80 है और लड़कों का 70 है । क ा म लड़िकयों का ितशत                    ा है ?
Options :
1.   60
2.   40
3.   50
4.   45


Question Number : 46 Question Id : 10343546 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 44 of 158
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If 40% of (x-y) = 20% of (x+y) then what percent of x is y?
Options :
1.   33.33
2.   37.25
3.   66.67
4.   32.54


Question Number : 46 Question Id : 10343546 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद (x-y) का 40% = (x+y) का 20% है , तो x का िकतना ितशत y है ?
Options :
1.   33.33
2.   37.25
3.   66.67
4.   32.54


Question Number : 47 Question Id : 10343547 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The cost price of a mobile phone is Rs.1200 and it was sold for Rs.900, find the loss %?
Options :
1.   20%
2.   30%
3.   45%
4.   25%


Question Number : 47 Question Id : 10343547 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक मोबाइल फोन की लागत मू       1200 पए है और इसे 900 पए म बेचा गया, तो हािन % ात कर?
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 45 of 158
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Text of page 45
1.   20%
2.   30%
3.   45%
4.   25%


Question Number : 48 Question Id : 10343548 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
By selling an article at Rs. 900, a shopkeeper makes a profit of 25%. At what price should he sell the article so as to make a loss of 25%?
Options :
1.   Rs 560
2.   Rs 540
3.   Rs 420
4.   Rs 460


Question Number : 48 Question Id : 10343548 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक व ु को 900 पए म बेचकर, एक दु कानदार 25% का लाभ अिजत करता है । 25% की हािन के िलए उसे व                 ु को िकस मू   पर बेचना चािहए?
Options :
1.   560 पए
2.   540 पए
3.   420 पए
4.   460 पए


Question Number : 49 Question Id : 10343549 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In a library, the ratio of number of story books to that of non-story books was 3:4 and total number of story books was 1560. When some more
story books were bought, the ratio became 3:2. Find the number of story books bought.
Options :
1.     1560
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 46 of 158
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2.   1250
3.   840
4.   990


Question Number : 49 Question Id : 10343549 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक पु कालय म, कहानी पु क की सं ा का गैर-कहानी पु क से अनुपात 3:4 था और कहानी पु                      क की कुल सं      ा 1560 थी। जब कुछ और कहानी
पु क खरीदी गईं, तो अनुपात 3:2 हो गया। खरीदी गई कहानी पु क की सं ा ात कर।
Options :
1.   1560
2.   1250
3.   840
4.   990


Question Number : 50 Question Id : 10343550 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The ratio of the present age of father to that of son is 7:2. After 10 years their ages will be in the ratio of 9:4. The present ages of the father is
__________ years.
Options :
1.   35
2.   28
3.   42
4.   56


Question Number : 50 Question Id : 10343550 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िपता की वतमान आयु का पु की वतमान आयु से अनुपात 7:2 है । 10 वष बाद उनकी आयु 9:4 के अनुपात म होगी। िपता की वतमान आयु __________ वष
है ।
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 47 of 158
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Text of page 47
1.   35
2.   28
3.   42
4.   56


Question Number : 51 Question Id : 10343551 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Rohan deposited rupees 20000 for 4 year at a rate of 5% p.a. Find the amount Rohan got in rupees.
Options :
1.   28000
2.   22400
3.   24400
4.   24000


Question Number : 51 Question Id : 10343551 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
रोहन ने ित वष 5% की दर से 4 वष के िलए 20000 पए जमा िकए। रोहन को ा     ई रािश पए म ात कर।
Options :
1.   28000
2.   22400
3.   24400
4.   24000


Question Number : 52 Question Id : 10343552 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Find the compound interest (in Rs), if Rs 7500 was invested for 2 years at 10% p.a. compounded half-yearly?
Options :
1.    1050
2.    1320
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 48 of 158
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Text of page 48
3.   1575
4.   1150


Question Number : 52 Question Id : 10343552 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
च वृ      ाज ( पए म) ात कर, यिद 7500 पए को 2 वष के िलए ित वष 10% की दर से िनवेश िकया गया था जो अधवािषक                  प से च वृ    होता ह?
Options :
1.   1050
2.   1320
3.   1575
4.   1150


Question Number : 53 Question Id : 10343553 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A man decided to cover a distance of 12 km in 144 minutes. He decided to cover two thirds of the distance at 4 km / hr and the remaining at some
different speed. Find the speed after the two third distance has been covered.
Options :
1.    13 km/hr
2.    10 km/hr
3.    8km/hr
4.    12 km/hr


Question Number : 53 Question Id : 10343553 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक        ने 144 िमनट म 12 km की दू री तय करने का िनणय िलया। उसने दू री का दो ितहाई 4 km / hr से तय करने का और शेष को कुछ अलग गित से तय
िकया। दो ितहाई दू री तय करने के बाद की गित ात कर।
Options :
1.   13 km/hr
2.   10 km/hr
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 49 of 158
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Text of page 49
3.   8km/hr
4.   12 km/hr


Question Number : 54 Question Id : 10343554 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
If a person walks at 16 km/hr instead of 10 km/hr, he would have walked 30 km more. The actual distance travelled by him is ______ km.
Options :
1.    80
2.    60
3.    50
4.    100


Question Number : 54 Question Id : 10343554 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद कोई         10 km/hr के बजाय 16 km/hr की गित से चलता है , तो वह 30 km अिधक चल पाता। उसके ारा तय की गई वा         िवक दू री ______ km है ।
Options :
1.   80
2.   60
3.   50
4.   100


Question Number : 55 Question Id : 10343555 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A can do a bit of work in 10 days, which B alone can do in 12 days. How long both working together can do the work?
Options :
1.   62/11 days
2.   60/11 days
3.   72/11 days
4.   9 days
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 50 of 158
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Text of page 50
Question Number : 55 Question Id : 10343555 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A िकसी काय को 10 िदनों म कर सकता है , िजसे B अकेला 12 िदनों म कर सकता है । दोनों िमलकर काम करके िकतने समय म काम को कर सकते ह?
Options :
1.   62/11 िदन
2.   60/11 िदन
3.   72/11 िदन
4.   9 िदन


Question Number : 56 Question Id : 10343556 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A and B undertake to do a piece of work for Rs. 480. A can do it in 20 days and B can do it in 40 days. With the help of C, they finish it in 8
days. How much should C be paid for his contribution?
Options :
1.    Rs 152
2.    Rs 180
3.    Rs 192
4.    Rs 186


Question Number : 56 Question Id : 10343556 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A और B 480 पए के िलए एक काय करने का वचन दे ते ह। A इसे 20 िदनों म कर सकता है और B इसे 40 िदनों म कर सकता है । C की सहायता से, वे इसे 8
िदनों म पूरा करते ह। C को उसके योगदान के िलए िकतना भुगतान िकया जाना चािहए?
Options :
1.   152 पए
2.   180 पए
3.   192 पए
4.   186 पए
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 51 of 158
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Text of page 51
Question Number : 57 Question Id : 10343557 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
If the ratio of radius two Cylinders A and B are in the ratio of 2:1 and their heights are in the ratio of 2:1 respectively. The ratio of their total
surface areas of Cylinder A to B is?
Options :
1.    4∶1
2.   1:2
3.   2:1
4.   4:3


Question Number : 57 Question Id : 10343557 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद दो बेलन A और B की ि         ा का अनुपात, 2:1 के अनुपात म है और उनकी ऊंचाई          मशः 2:1 के अनुपात म है । बेलन A से B के उनके कुल पृ ीय
  े फल का अनुपात ा है ?
Options :
1.   4∶1
2.   1:2
3.   2:1
4.   4:3


Question Number : 58 Question Id : 10343558 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The Pie chart below gives percentage of students preparing for various government exams. Ratio of male to female students is 3:2 for all the
exams. Total number of students is 15000.
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 52 of 158
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Text of page 52
What is the ratio of male students appearing for Bank PO exam to female students appearing for SSC CGL?




Options :
1.   13:23
2.   20:13
3.   21:16
4.   16:21


Question Number : 58 Question Id : 10343558 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
नीचे िदया गया पाई चाट िविभ सरकारी परी ाओं की तैयारी करने वाले छा ों का ितशत दे ता है । सभी परी ाओं के िलए पु ष से मिहला छा ों का अनुपात
3:2 है । छा ों की कुल सं ा 15000 है ।
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 53 of 158
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Text of page 53
बक PO परी ा म बैठने वाले पु ष छा ों का SSC CGL के िलए उप थत होने वाली मिहला छा ों से अनुपात   ा है ?




Options :
1.   13:23
2.   20:13
3.   21:16
4.   16:21


Question Number : 59 Question Id : 10343559 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The following line graph shows the percentage of students passed in the given period.
If there are 80 girls in the class of 2015, then how many girls failed that year?
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 54 of 158
Page 54 of 158
Text of page 54
Options :
1.   18
2.   16
3.   26
4.   24


Question Number : 59 Question Id : 10343559 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत रे खा ाफ दी गई अविध म उ ीण होने वाले छा ों के ितशत को दशाता है ।
यिद 2015 की क ा म 80 लड़िकयाँ ह, तो उस वष िकतनी लड़िकयाँ अनु ीण ई?
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 55 of 158
Page 55 of 158
Text of page 55
Options :
1.   18
2.   16
3.   26
4.   24


Question Number : 60 Question Id : 10343560 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The bar graph below represents the sales by company A, B, C and D in different cities.
Total cost of production is Rs 50,00,000.
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 56 of 158
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Text of page 56
If C's production is 10% of total cost of production, then total sales of company C is what percent of total cost of production by company C?




Options :
1.   160%
2.   120%
3.   140%
4.   150%


Question Number : 60 Question Id : 10343560 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
नीचे िदया गया बार ाफ िविभ शहरों म कंपनी A, B, C और D ारा िब ी का ितिनिध             करता है ।
उ ादन की कुल लागत 50,00,000 पए है ।
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 57 of 158
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Text of page 57
यिद C का उ ादन, उ ादन की कुल लागत का 10% है , तो कंपनी C की कुल िब ी कंपनी C ारा उ ादन की कुल लागत का िकतना ितशत है ?




Options :
1.   160%
2.   120%
3.   140%
4.   150%



                                                    General English
Group Number :                                                       4
Group Id :                                                           1034354
Group Maximum Duration :                                             0
Group Minimum Duration :                                             0
Show Attended Group? :                                               No
Edit Attended Group? :                                               No
Break time :                                                         0
Group Marks :                                                        20
Is this Group for Examiner? :                                        No
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 58 of 158
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Text of page 58
General English
Section Id :                                                                       1034354
Section Number :                                                                   1
Section type :                                                                     Online
Mandatory or Optional :                                                            Mandatory
Number of Questions :                                                              16
Number of Questions to be attempted :                                              16
Section Marks :                                                                    20
Enable Mark as Answered Mark for Review and Clear Response :                       Yes
Sub-Section Number :                                                               1
Sub-Section Id :                                                                   1034354
Question Shuffling Allowed :                                                       Yes

Question Number : 61 Question Id : 10343561 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The sentence below has been divided into three parts. Select the part of the sentence that has an error. If the sentence has no error, select the
option 'No Error'.

Marge told the police/ officers that, “I haven’t seen/ them since last week.”
Options :
1.   Marge told the police
2.   officers that, “I haven’t seen
3.   them since last week.”
4.   No Error


Question Number : 61 Question Id : 10343561 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The sentence below has been divided into three parts. Select the part of the sentence that has an error. If the sentence has no error, select the
option 'No Error'.

Marge told the police/ officers that, “I haven’t seen/ them since last week.”
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 59 of 158
Page 59 of 158
Text of page 59
1.   Marge told the police
2.   officers that, “I haven’t seen
3.   them since last week.”
4.   No Error


Question Number : 62 Question Id : 10343562 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The sentence below has been divided into three parts. Select the part of the sentence that has an error. If the sentence has no error, select the
option 'No Error'.

Hardly had she walked into the/ room that she saw someone/ jumping out the window.
Options :
1.   Hardly had she walked into the
2.   room that she saw someone
3.   jumping out the window.
4.   No Error


Question Number : 62 Question Id : 10343562 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The sentence below has been divided into three parts. Select the part of the sentence that has an error. If the sentence has no error, select the
option 'No Error'.

Hardly had she walked into the/ room that she saw someone/ jumping out the window.
Options :
1.   Hardly had she walked into the
2.   room that she saw someone
3.   jumping out the window.
4.   No Error


Question Number : 63 Question Id : 10343563 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 60 of 158
Page 60 of 158
Text of page 60
Correct Marks : 1 Wrong Marks : 0.25
Select the word segment that substitutes (replaces) the bracketed word segment correctly and completes the sentence meaningfully. Select the
option 'no correction required' if the sentence is correct as given.

(Beside ability, the other essential element) in political success is luck.
Options :
1.   Besides ability, the other essential element
2.   Beside ability, another essential element
3.   Besides ability, the other essential elements
4.   No correction required


Question Number : 63 Question Id : 10343563 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the word segment that substitutes (replaces) the bracketed word segment correctly and completes the sentence meaningfully. Select the
option 'no correction required' if the sentence is correct as given.

(Beside ability, the other essential element) in political success is luck.
Options :
1.   Besides ability, the other essential element
2.   Beside ability, another essential element
3.   Besides ability, the other essential elements
4.   No correction required


Question Number : 64 Question Id : 10343564 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the word segment that substitutes (replaces) the bracketed word segment correctly and completes the sentence meaningfully. Select the
option 'no correction required' if the sentence is correct as given.

I wouldn't stand for (that sort of behaviour from him, if I was) you.
Options :
1.   this sort of behaviour from him, had I been
2.   that sort of behaviour from him, if I were
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 61 of 158
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Text of page 61
3.   this sort of behaviour from him, if I was
4.   No correction required


Question Number : 64 Question Id : 10343564 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the word segment that substitutes (replaces) the bracketed word segment correctly and completes the sentence meaningfully. Select the
option 'no correction required' if the sentence is correct as given.

I wouldn't stand for (that sort of behaviour from him, if I was) you.
Options :
1.   this sort of behaviour from him, had I been
2.   that sort of behaviour from him, if I were
3.   this sort of behaviour from him, if I was
4.   No correction required


Question Number : 65 Question Id : 10343565 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Fill in the blank with the most appropriate choice

It is possible to __________ a number of different techniques in her work.
Options :
1.     demur
2.     discern
3.     disabuse
4.     desiccate


Question Number : 65 Question Id : 10343565 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Fill in the blank with the most appropriate choice
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 62 of 158
Page 62 of 158
Text of page 62
It is possible to __________ a number of different techniques in her work.
Options :
1.     demur
2.     discern
3.   disabuse
4.   desiccate


Question Number : 66 Question Id : 10343566 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Fill in the blank with the most appropriate choice

A little more discipline in thought would be appropriate before we ____________ the bird colonels and stars.
Options :
1.     castigate
2.     censure
3.     coalesce
4.     condone


Question Number : 66 Question Id : 10343566 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Fill in the blank with the most appropriate choice

A little more discipline in thought would be appropriate before we ____________ the bird colonels and stars.
Options :
1.     castigate
2.     censure
3.     coalesce
4.     condone


Question Number : 67 Question Id : 10343567 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
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Correct Marks : 1 Wrong Marks : 0.25
Some parts of a sentence have been jumbled up, and labelled P, Q, R and S. Select the option that gives the correct sequence in which these parts
can be rearranged to form a meaningful and grammatically correct sentence.

I saw myself

P. and agitator and

Q. behind-the-scenes

R. lobbyist on some

S. as an advocate

very minor aspects of it.
Options :
1.   SPRQ
2.   SQRP
3.   SPQR
4.   SRQP


Question Number : 67 Question Id : 10343567 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Some parts of a sentence have been jumbled up, and labelled P, Q, R and S. Select the option that gives the correct sequence in which these parts
can be rearranged to form a meaningful and grammatically correct sentence.

I saw myself

P. and agitator and

Q. behind-the-scenes

R. lobbyist on some

S. as an advocate

very minor aspects of it.
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 64 of 158
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Options :
1.   SPRQ
2.   SQRP
3.   SPQR
4.   SRQP


Question Number : 68 Question Id : 10343568 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The question below consist of a set of labelled sentences. Out of four options given, select the most logical order of the sentences which form a
paragraph.

Hawking studied physics at University College, Oxford (B.A., 1962), and Trinity Hall, Cambridge (Ph.D., 1966).

P. In 1971 he suggested the formation, following the big bang, of numerous objects containing as much as one billion tons of mass but occupying
only the space of a proton.

Q. He continued to work despite the disease’s progressively disabling effects.

R. In the early 1960s Hawking contracted amyotrophic lateral sclerosis, an incurable degenerative neuromuscular disease.

S. Hawking worked primarily in the field of general relativity and particularly on the physics of black holes.

These objects, called mini black holes, are unique in that their immense mass and gravity require that they be ruled by the laws of relativity, while
their minute size requires that the laws of quantum mechanics apply to them also.
Options :
1.    RPSQ
2.    RQSP
3.    PSQR
4.    PRSQ


Question Number : 68 Question Id : 10343568 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The question below consist of a set of labelled sentences. Out of four options given, select the most logical order of the sentences which form a
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 65 of 158
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Text of page 65
paragraph.

Hawking studied physics at University College, Oxford (B.A., 1962), and Trinity Hall, Cambridge (Ph.D., 1966).

P. In 1971 he suggested the formation, following the big bang, of numerous objects containing as much as one billion tons of mass but occupying
only the space of a proton.

Q. He continued to work despite the disease’s progressively disabling effects.

R. In the early 1960s Hawking contracted amyotrophic lateral sclerosis, an incurable degenerative neuromuscular disease.

S. Hawking worked primarily in the field of general relativity and particularly on the physics of black holes.

These objects, called mini black holes, are unique in that their immense mass and gravity require that they be ruled by the laws of relativity, while
their minute size requires that the laws of quantum mechanics apply to them also.
Options :
1.   RPSQ
2.   RQSP
3.   PSQR
4.   PRSQ


Question Number : 69 Question Id : 10343569 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the word that is opposite in meaning (ANTONYM) to the word given below

reconcile
Options :
1.   disperse
2.   cynic
3.   pacify
4.   sophisticated


Question Number : 69 Question Id : 10343569 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 66 of 158
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Text of page 66
Correct Marks : 1 Wrong Marks : 0.25
Select the word that is opposite in meaning (ANTONYM) to the word given below

reconcile
Options :
1.   disperse
2.   cynic
3.   pacify
4.   sophisticated


Question Number : 70 Question Id : 10343570 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the word that is similar in meaning (SYNONYM) to the word given below

proliferate
Options :
1.    amenable
2.    susceptible
3.    imperfect
4.    escalate


Question Number : 70 Question Id : 10343570 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the word that is similar in meaning (SYNONYM) to the word given below

proliferate
Options :
1.    amenable
2.    susceptible
3.    imperfect
4.    escalate
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Question Number : 71 Question Id : 10343571 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Four words are given, out of which only one word is spelt correctly. Choose the correctly spelt word.
Options :
1.   disilussion
2.   disillusion
3.   disilusion
4.   dissillusion


Question Number : 71 Question Id : 10343571 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Four words are given, out of which only one word is spelt correctly. Choose the correctly spelt word.
Options :
1.   disilussion
2.   disillusion
3.   disilusion
4.   dissillusion


Question Number : 72 Question Id : 10343572 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Four words are given, out of which only three words are spelt correctly. Choose the one spelt incorrectly.
Options :
1.   pervasive
2.   phlegmatic
3.   phenomanon
4.   precarious


Question Number : 72 Question Id : 10343572 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
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Text of page 68
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Four words are given, out of which only three words are spelt correctly. Choose the one spelt incorrectly.
Options :
1.   pervasive
2.   phlegmatic
3.   phenomanon
4.   precarious


Question Number : 73 Question Id : 10343573 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the most appropriate meaning of the given idiom

Get down to brass tacks
Options :
1.   To politely ask for someone’s full attention
2.   Knuckle tapping on wood in order to avoid some bad luck
3.   You frequently see the same people in different places
4.   To become serious about something


Question Number : 73 Question Id : 10343573 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the most appropriate meaning of the given idiom

Get down to brass tacks
Options :
1.   To politely ask for someone’s full attention
2.   Knuckle tapping on wood in order to avoid some bad luck
3.   You frequently see the same people in different places
4.   To become serious about something
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Question Number : 74 Question Id : 10343574 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the most appropriate meaning of the given idiom

Finding your feet
Options :
1.   An aggressive and bold confrontation
2.   To become more comfortable in whatever you are doing
3.   It seems likely, reasonable, or typical
4.   Deteriorating and headed for complete disaster


Question Number : 74 Question Id : 10343574 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the most appropriate meaning of the given idiom

Finding your feet
Options :
1.   An aggressive and bold confrontation
2.   To become more comfortable in whatever you are doing
3.   It seems likely, reasonable, or typical
4.   Deteriorating and headed for complete disaster


Question Number : 75 Question Id : 10343575 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the most appropriate 'one word ' for the expressions given below

Periods of time that are very important in history
Options :
1.   Crusade
2.   Epoch
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 70 of 158
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3.   Flotilla
4.   Frivolous


Question Number : 75 Question Id : 10343575 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the most appropriate 'one word ' for the expressions given below

Periods of time that are very important in history
Options :
1.   Crusade
2.   Epoch
3.   Flotilla
4.   Frivolous
Sub-Section Number :                                                            2
Sub-Section Id :                                                                1034355
Question Shuffling Allowed :                                                    Yes

Question Id : 10343576 Question Type : COMPREHENSION Sub Question Shuffling Allowed : Yes Group Comprehension Questions :
No
Question Numbers : (76 to 80)
A passage is given with 5 questions following it. Read the passage carefully and choose the best answer to each question out of the four
alternatives

The Bermuda Triangle occupies a disturbing and almost unbelievable place in the world's catalogue of unexplained mysteries. More than a
hundred planes and ships have vanished in this area into the air, the first ever case accounted for in 1945, and more than a thousand lives have
been lost, without a single body or even a piece wreckage from the vanishing planes or ships having been found. Many of the planes concerned
have vanished while in normal radio contact with their base until the very moment of their disappearance, while others have radioed the most
extraordinary messages, implying that they could not get their instruments to function, that their compasses were spinning, that the sky had
turned yellow and hazy on a clear day, and the ocean, which was calm nearby, didn't look right without further clarification of what was wrong.
Sub questions

Question Number : 76 Question Id : 10343577 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 71 of 158
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Which of the following is true about Bermuda Triangle?
Options :
1.   Costing more than a hundred thousand lives in the sea and the air.
2.   Explained disappearances of planes and ships.
3.   Losing absolute contact with base and outside world.
4.   Finding no wreckage of the vessels which crashed and disappeared into the triangle.

Question Number : 77 Question Id : 10343578 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
When was the first case of unexplained disasters in the Bermuda Triangle recorded?
Options :
1.   1915
2.   1954
3.   1945
4.   1932

Question Number : 78 Question Id : 10343579 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
From the context of the passage what would you not associate Bermuda Triangle with? Choose one option.
Options :
1.   Unnatural events
2.   Explicable events
3.   Unexplained mysteries
4.   Disturbing events

Question Number : 79 Question Id : 10343580 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
According to the passage, which of the following anomaly is incorrect and has not been relayed via radio contact? Choose one option.
Options :
1.   Change in the atmospheric pressure
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 72 of 158
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2.   Instrumentation malfunction
3.   Compass Malfunction
4.   Change in the colour of the sky and haziness on a clear day.

Question Number : 80 Question Id : 10343581 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
According to the passage, which of the following option is incorrect? Choose one option.
Options :
1.   The Bermuda Triangle occupies a disturbing and almost unbelievable place in the world's catalogue of explicable mysteries.
2.   Many of the planes after entering the Bermuda Triangle lost radio contact with the base.
3.   More than a hundred planes and ships have disappeared into the triangle.
4.   There hasn't been found a single piece of wreckage or any bodies associated with the disasters which took place in the Bermuda triangle.


Question Id : 10343576 Question Type : COMPREHENSION Sub Question Shuffling Allowed : Yes Group Comprehension Questions :
No
Question Numbers : (76 to 80)
A passage is given with 5 questions following it. Read the passage carefully and choose the best answer to each question out of the four
alternatives

The Bermuda Triangle occupies a disturbing and almost unbelievable place in the world's catalogue of unexplained mysteries. More than a
hundred planes and ships have vanished in this area into the air, the first ever case accounted for in 1945, and more than a thousand lives have
been lost, without a single body or even a piece wreckage from the vanishing planes or ships having been found. Many of the planes concerned
have vanished while in normal radio contact with their base until the very moment of their disappearance, while others have radioed the most
extraordinary messages, implying that they could not get their instruments to function, that their compasses were spinning, that the sky had
turned yellow and hazy on a clear day, and the ocean, which was calm nearby, didn't look right without further clarification of what was wrong.
Sub questions

Question Number : 76 Question Id : 10343577 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following is true about Bermuda Triangle?
Options :
1.   Costing more than a hundred thousand lives in the sea and the air.
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 73 of 158
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Text of page 73
2.   Explained disappearances of planes and ships.
3.   Losing absolute contact with base and outside world.
4.   Finding no wreckage of the vessels which crashed and disappeared into the triangle.

Question Number : 77 Question Id : 10343578 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
When was the first case of unexplained disasters in the Bermuda Triangle recorded?
Options :
1.   1915
2.   1954
3.   1945
4.   1932

Question Number : 78 Question Id : 10343579 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
From the context of the passage what would you not associate Bermuda Triangle with? Choose one option.
Options :
1.   Unnatural events
2.   Explicable events
3.   Unexplained mysteries
4.   Disturbing events

Question Number : 79 Question Id : 10343580 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
According to the passage, which of the following anomaly is incorrect and has not been relayed via radio contact? Choose one option.
Options :
1.   Change in the atmospheric pressure
2.   Instrumentation malfunction
3.   Compass Malfunction
4.   Change in the colour of the sky and haziness on a clear day.
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 74 of 158
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Text of page 74
Question Number : 80 Question Id : 10343581 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
According to the passage, which of the following option is incorrect? Choose one option.
Options :
1.   The Bermuda Triangle occupies a disturbing and almost unbelievable place in the world's catalogue of explicable mysteries.
2.   Many of the planes after entering the Bermuda Triangle lost radio contact with the base.
3.   More than a hundred planes and ships have disappeared into the triangle.
4.   There hasn't been found a single piece of wreckage or any bodies associated with the disasters which took place in the Bermuda triangle.



                                                            General Hindi
Group Number :                                                                 5
Group Id :                                                                     1034355
Group Maximum Duration :                                                       0
Group Minimum Duration :                                                       0
Show Attended Group? :                                                         No
Edit Attended Group? :                                                         No
Break time :                                                                   0
Group Marks :                                                                  20
Is this Group for Examiner? :                                                  No



                                                            General Hindi
Section Id :                                                                   1034355
Section Number :                                                               1
Section type :                                                                 Online
Mandatory or Optional :                                                        Mandatory
Number of Questions :                                                          16
Number of Questions to be attempted :                                          16
Section Marks :                                                                20
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Enable Mark as Answered Mark for Review and Clear Response :              Yes
Sub-Section Number :                                                      1
Sub-Section Id :                                                          1034356
Question Shuffling Allowed :                                              Yes

Question Number : 81 Question Id : 10343582 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत      म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए संिध - िव े द श   के सही संिध का िवक   है

यिद + अिप
Options :
1.   यदिप
2.   यिदअपी
3.   य िप
4.   यदापी


Question Number : 81 Question Id : 10343582 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत      म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए संिध - िव े द श   के सही संिध का िवक   है

यिद + अिप
Options :
1.   यदिप
2.   यिदअपी
3.   य िप
4.   यदापी


Question Number : 82 Question Id : 10343583 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 76 of 158
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िन िल खत       म ,चार िवक   ों म से उस िवक   का चयन कर जो त म श       का सही िवक    हो I
Options :
1.   कमीज़
2.   आठ
3.   चाँ द
4.   एक


Question Number : 82 Question Id : 10343583 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत       म ,चार िवक   ों म से उस िवक   का चयन कर जो त म श       का सही िवक    हो I
Options :
1.   कमीज़
2.   आठ
3.   चाँ द
4.   एक


Question Number : 83 Question Id : 10343584 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत       म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए संिध के सही संिध - िव े द श   का िवक   है

अहरहर
Options :
1.   अहन् + अहर
2.   अह + रहर
3.   अहर + हर
4.   अह + हर


Question Number : 83 Question Id : 10343584 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 77 of 158
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Text of page 77
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत       म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए संिध के सही संिध - िव े द श   का िवक    है

अहरहर
Options :
1.   अहन् + अहर
2.   अह + रहर
3.   अहर + हर
4.   अह + हर


Question Number : 84 Question Id : 10343585 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत       म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए वा     के र    थान के िलए उपयु   श     का सही िवक   है

_________ मानवों का िनयम नहीं है
Options :
1.   आ      क ितरोध
2.   मानिसक
3.   दु बल शरीर
4.   िवनाश


Question Number : 84 Question Id : 10343585 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत       म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए वा     के र    थान के िलए उपयु   श     का सही िवक   है

_______ मानवों का िनयम नहीं है
Options :
1.   आ      क ितरोध
2.   मानिसक
3.   दु बल शरीर
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4.   िवनाश


Question Number : 85 Question Id : 10343586 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म ,चार िवक       ों म से उस िवक   का चयन कर जो शु   श   का सही िवक   है I
Options :
1.   के     य
2.   पूित
3.   आधीन
4.   अगामी


Question Number : 85 Question Id : 10343586 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म ,चार िवक       ों म से उस िवक   का चयन कर जो शु   श   का सही िवक   है I
Options :
1.   के     य
2.   पूित
3.   आधीन
4.   अगामी


Question Number : 86 Question Id : 10343587 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म ,चार िवक       ों म से उस िवक   का चयन कर जो िदए गए श   यु   के अथ का सही िवक   है I

असन - आसन
Options :
1.   भोजन, शालीनता
2.   लगातार , बैठने की व     ु
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3.   भोजन ,बैठने की व      ु
4.   कण, पीछे


Question Number : 86 Question Id : 10343587 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म ,चार िवक         ों म से उस िवक   का चयन कर जो िदए गए श    यु   के अथ का सही िवक    है I

असन - आसन
Options :
1.   भोजन, शालीनता
2.   लगातार , बैठने की व       ु
3.   भोजन ,बैठने की व      ु
4.   कण, पीछे


Question Number : 87 Question Id : 10343588 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म ,चार िवक         ों म से उस िवक   का चयन कर जो िदए गए वा   ां श के िलए एक श   का सही िवक   हो I

जीिवत रहने की इ    ा
Options :
1.   िजजीिवषा
2.   िजगीषु
3.   िज ासा
4.   िज ासु


Question Number : 87 Question Id : 10343588 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म ,चार िवक         ों म से उस िवक   का चयन कर जो िदए गए वा   ां श के िलए एक श   का सही िवक   हो I
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जीिवत रहने की इ      ा
Options :
1.   िजजीिवषा
2.   िजगीषु
3.   िज ासा
4.   िज ासु


Question Number : 88 Question Id : 10343589 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत         म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए वा   के काल के भेद का सही िवक   है I

दु कान बंद हो चुकी होगी।
Options :
1.   स      ा   वतमानकाल
2.   हे तुहेतुमद भिव त काल
3.   हे तुहेतुमद् भूतकाल
4.   संिद       भूतकाल


Question Number : 88 Question Id : 10343589 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत         म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए वा   के काल के भेद का सही िवक   है I

दु कान बंद हो चुकी होगी।
Options :
1.   स      ा   वतमानकाल
2.   हे तुहेतुमद भिव त काल
3.   हे तुहेतुमद् भूतकाल
4.   संिद       भूतकाल
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Question Number : 89 Question Id : 10343590 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत          म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए वा   के भेद का सही िवक   है I

यहाँ दो निदयाँ आकर िमलती ह इसिलए इसे संगम कहते ह I
Options :
1.   संयु    वा
2.   िवधानवाचक वा
3.   सरल वा
4.   िम वा


Question Number : 89 Question Id : 10343590 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत          म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए वा   के भेद का सही िवक   है I

यहाँ दो निदयाँ आकर िमलती ह इसिलए इसे संगम कहते ह I
Options :
1.   संयु    वा
2.   िवधानवाचक वा
3.   सरल वा
4.   िम वा


Question Number : 90 Question Id : 10343591 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत          म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए वा   के वृि के भेद का सही िवक   है I

वह आता तो उसे भी वरदान िमल जाता ।
Options :
1.   संदेहाथ
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 82 of 158
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2.   संकेताथ
3.   साम       सूचक
4.   बा ता सूचक


Question Number : 90 Question Id : 10343591 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए वा   के वृि के भेद का सही िवक   है I

वह आता तो उसे भी वरदान िमल जाता ।
Options :
1.   संदेहाथ
2.   संकेताथ
3.   साम       सूचक
4.   बा ता सूचक


Question Number : 91 Question Id : 10343592 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए वा   के प के भेद का सही िवक     है I

वह िदन भर पढता था तब सफल आ।
Options :
1.   आर        ोतक
2.    गित ोतक
3.   सात बोधक प
4.   अ     ास दयोतक प


Question Number : 91 Question Id : 10343592 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म ,चार िवक   ों म से उस िवक   का चयन कर जो िदए गए वा   के प के भेद का सही िवक     है I
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 83 of 158
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वह िदन भर पढता था तब सफल आ।
Options :
1.   आर     ोतक
2.    गित ोतक
3.   सात बोधक प
4.   अ    ास दयोतक प


Question Number : 92 Question Id : 10343593 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत     म ,चार िवक   ों म से उस िवक    का चयन कर जो िवराम िच यु       वा      का सही िवक   हो |
Options :
1.   उसने पुनः ऊँची आवाज़ म कहा , म यदु िम     ी ँ ,बड़े साहब ,आपका चहे ता यदु िम    ी |"
2.   उसने पुनः ऊँची आवाज़ म कहा , " म यदु िम    ी ँ ,बड़े साहब ,आपका चहे ता यदु िम     ी"
3.   उसने पुनः ऊँची आवाज़ म कहा , " म यदु िम    ी ँ ,बड़े साहब ,आपका चहे ता यदु िम     ी|
4.   उसने पुनः ऊँची आवाज़ म कहा , " म यदु िम    ी ँ ,बड़े साहब ,आपका चहे ता यदु िम     ी |"


Question Number : 92 Question Id : 10343593 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत     म ,चार िवक   ों म से उस िवक    का चयन कर जो िवराम िच यु       वा      का सही िवक   हो |
Options :
1.   उसने पुनः ऊँची आवाज़ म कहा , म यदु िम     ी ँ ,बड़े साहब ,आपका चहे ता यदु िम    ी |"
2.   उसने पुनः ऊँची आवाज़ म कहा , " म यदु िम    ी ँ ,बड़े साहब ,आपका चहे ता यदु िम     ी"
3.   उसने पुनः ऊँची आवाज़ म कहा , " म यदु िम    ी ँ ,बड़े साहब ,आपका चहे ता यदु िम     ी|
4.   उसने पुनः ऊँची आवाज़ म कहा , " म यदु िम    ी ँ ,बड़े साहब ,आपका चहे ता यदु िम     ी |"


Question Number : 93 Question Id : 10343594 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 84 of 158
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िन िल खत        म ,चार िवक      ों म से उस िवक    का चयन कर जो िवराम िच यु   वा   का सही िवक   हो |
Options :
1.    मूत , िच , संगीत आिद भारतीय कलाएँ भी हमारी सं ृ ित के अंग ह |
2.    मूत , िच संगीत आिद भारतीय कलाएँ भी हमारी सं ृ ित के अंग ह |
3.    मूत ; िच ;संगीत आिद भारतीय कलाएँ भी हमारी सं ृ ित के अंग ह
4.    मूत , िच : संगीत आिद भारतीय कलाएँ भी हमारी सं ृ ित के अंग ह |


Question Number : 93 Question Id : 10343594 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म ,चार िवक      ों म से उस िवक    का चयन कर जो िवराम िच यु   वा   का सही िवक   हो |
Options :
1.    मूत , िच , संगीत आिद भारतीय कलाएँ भी हमारी सं ृ ित के अंग ह |
2.    मूत , िच संगीत आिद भारतीय कलाएँ भी हमारी सं ृ ित के अंग ह |
3.    मूत ; िच ;संगीत आिद भारतीय कलाएँ भी हमारी सं ृ ित के अंग ह
4.    मूत , िच : संगीत आिद भारतीय कलाएँ भी हमारी सं ृ ित के अंग ह |


Question Number : 94 Question Id : 10343595 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म ,चार िवक      ों म से उस िवक    का चयन कर जो िदए गए लोको    के सही अथ वाला िवक      है I

लातों के भूत बातों से नहीं मानते I
Options :
1.    कटु वचन स       होने पर भी बुरा लगता है ।
2.    कुछ लोग बात से नहीं डं डे की भाषा समझते ह I
3.    अपने अ      लाभ के िलए दू सरे की भारी हािन करते हो |
4.       ाथ और मजबूर             अनचाहा काय भी करता है ।


Question Number : 94 Question Id : 10343595 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
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Correct Marks : 1 Wrong Marks : 0.25
िन िल खत         म ,चार िवक      ों म से उस िवक     का चयन कर जो िदए गए लोको     के सही अथ वाला िवक     है I

लातों के भूत बातों से नहीं मानते I
Options :
1.    कटु वचन स         होने पर भी बुरा लगता है ।
2.    कुछ लोग बात से नहीं डं डे की भाषा समझते ह I
3.    अपने अ         लाभ के िलए दू सरे की भारी हािन करते हो |
4.         ाथ और मजबूर            अनचाहा काय भी करता है ।


Question Number : 95 Question Id : 10343596 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत         म ,चार िवक      ों म से उस िवक     का चयन कर जो िदए गए मुहावरे के सही अथ वाला िवक    है I

माथा ठनकना
Options :
1.    गड़बड़ होना
2.    प     ी बात
3.    शक होना
4.    गु    ा होना


Question Number : 95 Question Id : 10343596 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत         म ,चार िवक      ों म से उस िवक     का चयन कर जो िदए गए मुहावरे के सही अथ वाला िवक    है I

माथा ठनकना
Options :
1.    गड़बड़ होना
2.    प     ी बात
3.    शक होना
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4.   गु   ा होना
Sub-Section Number :                                                       2
Sub-Section Id :                                                           1034357
Question Shuffling Allowed :                                               Yes

Question Id : 10343597 Question Type : COMPREHENSION Sub Question Shuffling Allowed : Yes Group Comprehension Questions :
No
Question Numbers : (96 to 100)
नीचे िदए गए ग ां श को   ानपूवक पढ़ और पूछे गए    ों का सव म उ र चुन

सन् 2001 म भारत म लड़िकयों और लड़कों का अनुपात 932/1000 था और 2011 तक आते-आते यह अनुपात 918/1000 तक घट गया था। इसका अथ यह है
िक अगर समय रहते नहीं चेता गया तो, यह आं कड़ा घटते-घटते एक िदन शू ता की थित म आ जायेगा। ‘बेटी बचाओ बेटी पढ़ाओ’ का शुभारं भ धान मं ी ने
22 जनवरी 2015 को पानीपत, ह रयाणा म की थी। ह रयाणा म ही करने का मेन कारण वहां िलंग-अनुपात म सवािधक अंतर है । यह योजना पुरे दे श को समिपत
करते ए धानमं ी जी ने पूरे दे श का आ ाहन िकया, और सभी दे शवािसयों को एकजुट होकर लड़िकयों की कम जनसं ा को संतुिलत करने का संक
िकया। इस योजना का दारोमदार तीन मं ालयों को सौंपा गया है , ये ह - मिहला और बाल िवकास मं ालय, ा  प रवार क ाण मं ालय तथा मानव संसाधन
मं ालय।
Sub questions

Question Number : 96 Question Id : 10343598 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
अनु े द के अनुसार २००१ म भारत म लड़का लड़िकयों का अनुपात िकतना था ?
Options :
1.   932/ 1000
2.   834 / 1000
3.   900/ 1000
4.   742 / 1000

Question Number : 97 Question Id : 10343599 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
बेटी बचाओ बेटी पढ़ाओ’ का शुभारं भ धान मं ी ने जी ने कब की थी ?
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 87 of 158
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Text of page 87
1.   21 फे ुवारी 2014 को उ र दे श , मेरठ
2.   11 जुलाई 2015 को नागपुर ,महारा
3.   25 माच 2011 जबलपुर , म         दे श
4.   22 जनवरी 2015 को पानीपत, ह रयाणा

Question Number : 98 Question Id : 103435100 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
'मं ालय ' का संिध िव े द कीिजये |
Options :
1.   मं + लय
2.   मं + आलय
3.   मं + अलय
4.   मं + ओलय

Question Number : 99 Question Id : 103435101 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
इस योजना को िकन मं ालयों को सोंपा गया ?
Options :
1.     ामीण िवकास मं ालय
2.   र ा मं ालय
3.   मिहला और बाल िवकास मं ालय,            ा   प रवार क   ाण मं ालय तथा मानव संसाधन मं ालय।
4.   गृह मं ालय

Question Number : 100 Question Id : 103435102 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
अनु े द के िलए उिचत शीषक दीिजये |
Options :
1.   'बेटी बचाओ बेटी पढ़ाओ’
2.   लड़िकयों और लड़कों का अनुपात
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 88 of 158
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Text of page 88
3.   लड़िकयों की जनसं     ा
4.   लड़िकयों के िलए योजना का आर


Question Id : 10343597 Question Type : COMPREHENSION Sub Question Shuffling Allowed : Yes Group Comprehension Questions :
No
Question Numbers : (96 to 100)
नीचे िदए गए ग ां श को   ानपूवक पढ़ और पूछे गए    ों का सव म उ र चुन

सन् 2001 म भारत म लड़िकयों और लड़कों का अनुपात 932/1000 था और 2011 तक आते-आते यह अनुपात 918/1000 तक घट गया था। इसका अथ यह है
िक अगर समय रहते नहीं चेता गया तो, यह आं कड़ा घटते-घटते एक िदन शू ता की थित म आ जायेगा। ‘बेटी बचाओ बेटी पढ़ाओ’ का शुभारं भ धान मं ी ने
22 जनवरी 2015 को पानीपत, ह रयाणा म की थी। ह रयाणा म ही करने का मेन कारण वहां िलंग-अनुपात म सवािधक अंतर है । यह योजना पुरे दे श को समिपत
करते ए धानमं ी जी ने पूरे दे श का आ ाहन िकया, और सभी दे शवािसयों को एकजुट होकर लड़िकयों की कम जनसं ा को संतुिलत करने का संक
िकया। इस योजना का दारोमदार तीन मं ालयों को सौंपा गया है , ये ह - मिहला और बाल िवकास मं ालय, ा  प रवार क ाण मं ालय तथा मानव संसाधन
मं ालय।
Sub questions

Question Number : 96 Question Id : 10343598 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
अनु े द के अनुसार २००१ म भारत म लड़का लड़िकयों का अनुपात िकतना था ?
Options :
1.   932/ 1000
2.   834 / 1000
3.   900/ 1000
4.   742 / 1000

Question Number : 97 Question Id : 10343599 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
बेटी बचाओ बेटी पढ़ाओ’ का शुभारं भ धान मं ी ने जी ने कब की थी ?
Options :
1.   21 फे ुवारी 2014 को उ र दे श , मेरठ
2.   11 जुलाई 2015 को नागपुर ,महारा
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 89 of 158
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Text of page 89
3.   25 माच 2011 जबलपुर , म         दे श
4.   22 जनवरी 2015 को पानीपत, ह रयाणा

Question Number : 98 Question Id : 103435100 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
'मं ालय ' का संिध िव े द कीिजये |
Options :
1.   मं + लय
2.   मं + आलय
3.   मं + अलय
4.   मं + ओलय

Question Number : 99 Question Id : 103435101 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
इस योजना को िकन मं ालयों को सोंपा गया ?
Options :
1.     ामीण िवकास मं ालय
2.   र ा मं ालय
3.   मिहला और बाल िवकास मं ालय,            ा   प रवार क   ाण मं ालय तथा मानव संसाधन मं ालय।
4.   गृह मं ालय

Question Number : 100 Question Id : 103435102 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
अनु े द के िलए उिचत शीषक दीिजये |
Options :
1.   'बेटी बचाओ बेटी पढ़ाओ’
2.   लड़िकयों और लड़कों का अनुपात
3.   लड़िकयों की जनसं      ा
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 90 of 158
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4.   लड़िकयों के िलए योजना का आर



                                                        Discipline1
Group Number :                                                        6
Group Id :                                                            1034356
Group Maximum Duration :                                              0
Group Minimum Duration :                                              0
Show Attended Group? :                                                No
Edit Attended Group? :                                                No
Break time :                                                          0
Group Marks :                                                         20
Is this Group for Examiner? :                                         No



                                                        Discipline1
Section Id :                                                          1034356
Section Number :                                                      1
Section type :                                                        Online
Mandatory or Optional :                                               Mandatory
Number of Questions :                                                 20
Number of Questions to be attempted :                                 20
Section Marks :                                                       20
Enable Mark as Answered Mark for Review and Clear Response :          Yes
Sub-Section Number :                                                  1
Sub-Section Id :                                                      1034358
Question Shuffling Allowed :                                          Yes

Question Number : 101 Question Id : 103435103 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The solution of the equation (3xy²) dx + (3x²y + y³) dy = 0 is
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 91 of 158
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Options :
1.   3xy² ÷ 6 + y³ ÷ 4 + C
2.   3x²y ÷ 2 + y³ ÷ 4 + C
3.   3x²y² ÷ 2 + y⁴ ÷ 4 + C
4.   3x²y² ÷ 5 + y⁴ ÷ 2 + C


Question Number : 101 Question Id : 103435103 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
(3xy²) dx + (3x²y + y³) dy = 0 का हल है
Options :
1.   3xy² ÷ 6 + y³ ÷ 4 + C
2.   3x²y ÷ 2 + y³ ÷ 4 + C
3.   3x²y² ÷ 2 + y⁴ ÷ 4 + C
4.   3x²y² ÷ 5 + y⁴ ÷ 2 + C


Question Number : 102 Question Id : 103435104 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The unit vector normal to 4x² + 2 y² - 2Z = 1 at the point (1,-1, 2) is
Options :
1.   (-8 i - 4 j -2k)÷√84
2.   (8 i + 4 j +2k)÷√84
3.   (8 i + 4 j -2k)÷√84
4.   (8 i - 4 j -2k)÷√84


Question Number : 102 Question Id : 103435104 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
पोइं ट (1,-1, 2) पर 4x² + 2 y² - 2Z = 1 के िलए सामा   इकाई सिदश है
Options :
1.     (-8 i - 4 j -2k)÷√84
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 92 of 158
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2.   (8 i + 4 j +2k)÷√84
3.   (8 i + 4 j -2k)÷√84
4.   (8 i - 4 j -2k)÷√84


Question Number : 103 Question Id : 103435105 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the position vector in the spherical polar coordinate?
Options :
1.   r (sinϴcosφ i + sinϴsinφ j+ cosϴ k)
2.   r (sinϴcosφ i + cosϴsinφ j+ cosϴ k)
3.   r (sinϴcosφ i + sinϴsinφ j+ sinϴ k)
4.   r (cosϴcosφ i + sinϴsinφ j+ cosϴ k)


Question Number : 103 Question Id : 103435105 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
गोलाकार ुवीय िनदशां क म थित सिदश ा है ?
Options :
1.   r (sinϴcosφ i + sinϴsinφ j+ cosϴ k)
2.   r (sinϴcosφ i + cosϴsinφ j+ cosϴ k)
3.   r (sinϴcosφ i + sinϴsinφ j+ sinϴ k)
4.   r (cosϴcosφ i + sinϴsinφ j+ cosϴ k)


Question Number : 104 Question Id : 103435106 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
If 'p' is the probability of success and 'q' is the probability of failure for 'n' no. of trials, then the mean of the Poisson distribution is
Options :
1.      n²pq
2.      np
3.      npq
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 93 of 158
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4.   √npq


Question Number : 104 Question Id : 103435106 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद 'p' सफलता की ाियकता है और 'q', परी णों की सं   ा 'n' के िलए िवफलता की ाियकता है , तो   ासों िड ी ूशन का मा   है
Options :
1.   n²pq
2.   np
3.   npq
4.   √npq


Question Number : 105 Question Id : 103435107 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the acceleration of the body of mass 25 kg if constant force of 75 N applied on it?
Options :
1.   5 ms⁻²
2.   3 ms⁻²
3.   1 ms⁻²
4.   6 ms⁻²


Question Number : 105 Question Id : 103435107 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
25 kg     मान के िपंड का   रण   ा है यिद उस पर 75 N का िनयतां क बल लगाया जाए?
Options :
1.    5 ms⁻²
2.    3 ms⁻²
3.    1 ms⁻²
4.    6 ms⁻²
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Question Number : 106 Question Id : 103435108 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following have same unit to work?
Options :
1.   energy
2.   mass
3.   momentum
4.   torque


Question Number : 106 Question Id : 103435108 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से िकस म काय के िलए समान इकाई है ?
Options :
1.   ऊजा
2.       मान
3.   संवेग
4.   बलाघूण


Question Number : 107 Question Id : 103435109 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following is the unit of viscosity?
Options :
1.   Candela
2.   Pascal
3.   Ns m⁻²
4.   N-kg


Question Number : 107 Question Id : 103435109 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 95 of 158
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Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सी     ानता की इकाई है ?
Options :
1.   किडला
2.   पा ल
3.   Ns m⁻²
4.   N-kg


Question Number : 108 Question Id : 103435110 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following is not the example of central force?
Options :
1.   Frictional force
2.   Spring force
3.   Electrostatic force
4.   Gravitational force


Question Number : 108 Question Id : 103435110 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सा के ीय बल का उदाहरण नहीं है ?
Options :
1.   घषण बल
2.   कमानी (   ंग) बल
3.   िवद् युत थैितक बल
4.   गु   ाकषण बल


Question Number : 109 Question Id : 103435111 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 96 of 158
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Text of page 96
Correct Marks : 1 Wrong Marks : 0.25
When the length of the simple pendulum is increased to 16 times, the time period becomes________________.
Options :
1.   triple
2.   double
3.   eight times
4.   four times


Question Number : 109 Question Id : 103435111 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
जब साधारण लोलक की लंबाई 16 गुना तक बढ़ा दी जाती है , तो आवतकाल _________ हो जाता है ।
Options :
1.   ितगुना
2.   दोहरा
3.   आठ बार
4.   चार बार


Question Number : 110 Question Id : 103435112 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In non-inertial frame of reference________________.
Options :
1.   laws of motion remains same
2.   laws of motion vary from one frame to another
3.   first law remains same
4.   Second law does not change


Question Number : 110 Question Id : 103435112 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
गैर-जड़ ीय िनदश े म म________________।
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 97 of 158
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Options :
1.   गित के िनयम समान रहते ह
2.   गित के िनयम एक े म से दू सरे े म म िभ होते ह
3.   पहला िनयम वही रहता है
4.   दू सरा िनयम नहीं बदलता


Question Number : 111 Question Id : 103435113 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
If the energy of the photon is 9 × 10⁻¹⁹ J, the momentum is
Options :
1.    0 kg ms⁻¹
2.    3 × 10⁻²⁷ kg ms⁻¹
3.    9 × 10⁻¹² kg ms⁻¹
4.    2× 10⁻²⁷ kg ms⁻¹


Question Number : 111 Question Id : 103435113 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद फोटॉन की ऊजा 9 × 10⁻¹⁹ J है , तो संवेग है
Options :
1.   0 kg ms⁻¹
2.   3 × 10⁻²⁷ kg ms⁻¹
3.   9 × 10⁻¹² kg ms⁻¹
4.   2× 10⁻²⁷ kg ms⁻¹


Question Number : 112 Question Id : 103435114 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the correct relation between force and electric field?
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 98 of 158
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1.   F = 2q E
2.   F = q÷E
3.   F = E÷q
4.   F = qE


Question Number : 112 Question Id : 103435114 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
बल और िवद् युत े के बीच सही संबंध    ा है ?
Options :
1.   F = 2q E
2.   F = q÷E
3.   F = E÷q
4.   F = qE


Question Number : 113 Question Id : 103435115 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the value of magnetic field inside the solenoid?
Options :
1.   µ₀ nI
2.   µ₀ nI÷2
3.   3µ₀ nI
4.   5µ₀ nI


Question Number : 113 Question Id : 103435115 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
प रनािलका के अंदर चुंबकीय े का मान      ा है ?
Options :
1.   µ₀ nI
2.   µ₀ nI÷2
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 99 of 158
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3.   3µ₀ nI
4.   5µ₀ nI


Question Number : 114 Question Id : 103435116 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following do not possess permanent dipole moment?
Options :
1.   Paramagnetic
2.   ferromagnetic
3.   Diamagnetic
4.   Antiferromagnetic


Question Number : 114 Question Id : 103435116 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से िकस म थायी ि        ुवीय आघूण नहीं है ?
Options :
1.   अनुचु कीय
2.   लौहचु    कीय
3.     ितचु   कीय
4.     ित-लौहचुंबकीय


Question Number : 115 Question Id : 103435117 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A coil is placed in magnetic field of 5T and magnetic field lines making an angle 60° with axis of the coil. The area of the cross section is 0.25
m² and number of turns is 50.The magnetic flux linked with the coil is
Options :
1.   31.25 wb
2.   62.50 wb
3.   50.25 wb
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 100 of 158
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4.   45.50 wb


Question Number : 115 Question Id : 103435117 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक कुंडली को 5T के चु कीय े म और चु कीय े रे खाएं , कुंडली के अ से 60° का कोण बनाते ए रखी गई है । अनु   थ काट का े फल 0.25 m² है
और घुमावों की सं ा 50 है । कुंडली से जुड़ा चु कीय अिभवाह है
Options :
1.   31.25 wb
2.   62.50 wb
3.   50.25 wb
4.   45.50 wb


Question Number : 116 Question Id : 103435118 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the equivalent resistance if two resistor R1= 8 ohm and R2 = 8 ohm are in parallel?
Options :
1.   24 ohm
2.   8 ohm
3.   4 ohm
4.   16 ohm


Question Number : 116 Question Id : 103435118 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद दो ितरोधक R1 = 8 ओम और R2 = 8 ओम समानां तर म हों तो तु    ितरोध (ए   वैले   रे िज स)   ा होगा?
Options :
1.   24 ओम
2.   8 ओम
3.   4 ओम
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 101 of 158
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4.   16 ओम


Question Number : 117 Question Id : 103435119 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The oscillations will be large in the ballistic galvanometer if the moment of inertia in the coil is ________________.
Options :
1.   low
2.   high
3.   intermediate
4.   Constant


Question Number : 117 Question Id : 103435119 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
बैिल क गै       ेनोमीटर म दोलन बड़े होंगे यिद कुंडली म जड़ ाघूण _________ है ।
Options :
1.   कम
2.   उ
3.   म ां त रक
4.   िनयतां क


Question Number : 118 Question Id : 103435120 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the time required for one complete revolution of the particle executing simple harmonic motion?
Options :
1.   T = 2πω
2.   T = ω÷π
3.   T = ω÷2π
4.   T =2π÷ ω
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 102 of 158
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Text of page 102
Question Number : 118 Question Id : 103435120 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
सरल आवत गित करने वाले कण के एक पूण प र मण म िकतना समय लगता है ?
Options :
1.   T = 2πω
2.   T = ω÷π
3.   T = ω÷2π
4.   T =2π÷ ω


Question Number : 119 Question Id : 103435121 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The phase difference between the velocity and displacement of a particle executing SHM is
Options :
1.   π
2.   0
3.   2π
4.   π÷2


Question Number : 119 Question Id : 103435121 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
SHM को ि या    त करने वाले कण के वेग और िव थापन के बीच का कला र है
Options :
1.   π
2.   0
3.   2π
4.   π÷2


Question Number : 120 Question Id : 103435122 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 103 of 158
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Text of page 103
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The amplitude of the wave at the antinode is ________________.
Options :
1.   Maximum
2.   Minimum
3.   Infinite
4.   0


Question Number : 120 Question Id : 103435122 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एं टीनोड पर तरं ग का आयाम _________ है ।
Options :
1.   अिधकतम
2.     ूनतम
3.   अनंत
4.   0



                                                            Discipline2
Group Number :                                                        7
Group Id :                                                            1034357
Group Maximum Duration :                                              0
Group Minimum Duration :                                              0
Show Attended Group? :                                                No
Edit Attended Group? :                                                No
Break time :                                                          0
Group Marks :                                                         20
Is this Group for Examiner? :                                         No
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 104 of 158
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Text of page 104
Discipline2
Section Id :                                                          1034357
Section Number :                                                      1
Section type :                                                        Online
Mandatory or Optional :                                               Mandatory
Number of Questions :                                                 20
Number of Questions to be attempted :                                 20
Section Marks :                                                       20
Enable Mark as Answered Mark for Review and Clear Response :          Yes
Sub-Section Number :                                                  1
Sub-Section Id :                                                      1034359
Question Shuffling Allowed :                                          Yes

Question Number : 121 Question Id : 103435123 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following is not the type of wavefront?
Options :
1.   spherical wavefront
2.   Cylindrical wavefront
3.   Plane wavefront
4.   Elliptical wavefront


Question Number : 121 Question Id : 103435123 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सा तरं गा का कार नहीं है ?
Options :
1.   गोलाकार तरं गा
2.   बेलनाकार तरं गा
3.       ेन तरं गा
4.   अ      ाकार (इिलि कल) तरं गा
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 105 of 158
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Text of page 105
Question Number : 122 Question Id : 103435124 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What are the path difference and phase differences for the constructive interference?
Options :
1.   Δx = (n+1)λ, φ = 2nπ
2.   Δx = nλ, φ = (2n-1)π
3.   Δx = nλ, φ = 2nπ
4.   Δx = (n-1)λ, φ = (2n+1)π


Question Number : 122 Question Id : 103435124 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
संपोषी (क      व) ितकरण के िलए पथ अंतर और कला र       ा है ?
Options :
1.   Δx = (n+1)λ, φ = 2nπ
2.   Δx = nλ, φ = (2n-1)π
3.   Δx = nλ, φ = 2nπ
4.   Δx = (n-1)λ, φ = (2n+1)π


Question Number : 123 Question Id : 103435125 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
On what principle is the interferometer based?
Options :
1.   Superposition of wave
2.   laws of reflection
3.   Fresnel principle
4.   Huygens's principle


Question Number : 123 Question Id : 103435125 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 106 of 158
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Text of page 106
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 ितकरणमापी िकस िस ां त पर आधा रत है ?
Options :
1.   तरं ग का अ ारोपण
2.    ितिबंब के िनयम
3.    े सनेल िस ां त
4.   हाइगस का िस ां त


Question Number : 124 Question Id : 103435126 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In Fraunhofer diffraction, source is at ________________.
Options :
1.    Finite distance
2.    Infinite distance
3.    minimum distance
4.    in the middle of finite and infinite distance


Question Number : 124 Question Id : 103435126 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 ाउनहोफर िववतन म,       ोत _________ पर होता है ।
Options :
1.   प रिमत दू री
2.   अनंत दू री
3.     ूनतम दू री
4.   प रिमत और अनंत दू री के बीच म


Question Number : 125 Question Id : 103435127 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 107 of 158
Page 107 of 158
Text of page 107
Correct Marks : 1 Wrong Marks : 0.25
Which among the following fringes are not sharp and well defined?
Options :
1.   Fraunhofer diffraction
2.   Interference
3.   Fresnel diffraction
4.   Newton' ring


Question Number : 125 Question Id : 103435127 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन से ि ं ज नुकीले और      नहीं ह?
Options :
1.        ाउनहोफर िववतन
2.        ितकरण
3.    े    ेल िववतन
4.        ूटन वलय


Question Number : 126 Question Id : 103435128 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
When the value of the function repeats itself after equal interval of time, then function is________________.
Options :
1.   Complex
2.   Constant
3.   Non-periodic
4.   Periodic


Question Number : 126 Question Id : 103435128 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
जब फलन का मान समान अंतराल के बाद        यं को दोहराता है , तो फलन_________ होता है ।
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 108 of 158
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Text of page 108
Options :
1.   क      े
2.   िनयतां क
3.   गैर आवत
4.   आवत


Question Number : 127 Question Id : 103435129 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following Fourier coefficient is zero for even function?
Options :
1.   a0
2.   bn
3.   an
4.   a0 and bn


Question Number : 127 Question Id : 103435129 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सा फ़ूय गुणां क सम फलन के िलए शू   है ?
Options :
1.   a0
2.   bn
3.   an
4.   a0 और bn


Question Number : 128 Question Id : 103435130 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following is not the Dirichlet's condition for the given function in the interval (a,b)?
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 109 of 158
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Text of page 109
Options :
1.   Single valued
2.   Bounded
3.   finite number of discontinuity
4.   Non-periodic


Question Number : 128 Question Id : 103435130 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
अंतराल (a, b) म िदए गए फलन के िलए िन िल खत म से कौन सी डी र ले की थित नहीं है ?
Options :
1.   एकल मािनत
2.   प रबंिधत
3.   असां त     की प रिमत सं   ा
4.   गैर-आविधक


Question Number : 129 Question Id : 103435131 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the first order partial derivative of the function, F(x) = x² + y² + 4xy ?
Options :
1.   x +4y and y+4x
2.   2xy +4y and 2y+4x²
3.   2x +4x and 2y+4y
4.   2x +4y and 2y+4x


Question Number : 129 Question Id : 103435131 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
फलन F(x) = x² + y² + 4xy का थम कोिट आं िशक अवकलज         ा है ?
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 110 of 158
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Text of page 110
1.   x +4y और y+4x
2.   2xy +4y और 2y+4x²
3.   2x +4x और 2y+4y
4.   2x +4y और 2y+4x


Question Number : 130 Question Id : 103435132 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The degree of the closeness in the measurement of a quantity to its true value is known as
Options :
1.   Accuracy
2.   Precision
3.   Systematic error
4.   random error


Question Number : 130 Question Id : 103435132 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
मा ा के मापन म मा ा के वा   िवक मान से िनकटता की िड ी को िन   प म जाना जाता है ।
Options :
1.   शु ता
2.   प रशु
3.     मब     ुिट
4.   या      क ुिट


Question Number : 131 Question Id : 103435133 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
On which conservation law, the first law of thermodynamics based?
Options :
1.   Conservation of energy
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 111 of 158
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Text of page 111
2.   Conservation of momentum
3.   Conservation of mass
4.   Conservation of charge


Question Number : 131 Question Id : 103435133 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
ऊ ागितकी का थम िनयम, िकस संर ण िनयम पर आधा रत है ?
Options :
1.   ऊजा का संर ण
2.   संवेग का संर ण
3.       की अिवनािशता का िनयम
4.   आवेश का संर ण


Question Number : 132 Question Id : 103435134 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which law of thermodynamics establishes the concept of entropy?
Options :
1.   First law
2.   Second law
3.   Third law
4.   Fourth law


Question Number : 132 Question Id : 103435134 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
ऊ ागितकी का कौन सा िनयम ए ॉपी की अवधारणा को थािपत करता है ?
Options :
1.   पहला िनयम
2.   दू सरा िनयम
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 112 of 158
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Text of page 112
3.   तीसरा िनयम
4.   चौथा िनयम


Question Number : 133 Question Id : 103435135 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following is an example of an extensive variable?
Options :
1.   Temperature
2.   Entropy
3.   density
4.   refractive index


Question Number : 133 Question Id : 103435135 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सा िव   ारा क चर का उदाहरण है ?
Options :
1.   तापमान
2.   ए ॉपी
3.   घन
4.   अपवतनां क


Question Number : 134 Question Id : 103435136 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following is not the thermodynamic potential?
Options :
1.   U
2.   F
3.   G
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 113 of 158
Page 113 of 158
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 114 of 158
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Text of page 114
Question Number : 136 Question Id : 103435138 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the degrees of the freedom of the triatomic molecules due to translational motion?
Options :
1.   6
2.   5
3.   3
4.   4


Question Number : 136 Question Id : 103435138 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 थानां तरीय गित के कारण ि परमा   क अणुओं की   तं ता की िड ी   ा है ?
Options :
1.     6
2.     5
3.     3
4.     4


Question Number : 137 Question Id : 103435139 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The average translational kinetic energy of the molecule is
Options :
1.   kT÷3
2.   kT
3.   kT÷2
4.   3kT÷2


Question Number : 137 Question Id : 103435139 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 115 of 158
Page 115 of 158
Text of page 115
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
अणु की औसत थानां तरीय गितज ऊजा _________ है ।
Options :
1.   kT÷3
2.   kT
3.   kT÷2
4.   3kT÷2


Question Number : 138 Question Id : 103435140 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The collision between the molecules is
Options :
1.   perfectly elastic
2.   Inelastic
3.   can be elastic and inelastic
4.   cannot be perfectly elastic and inelastic


Question Number : 138 Question Id : 103435140 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
अणुओं के बीच िभड़ं त _________ है ।
Options :
1.   पूरी तरह से    ा थ
2.   अ     ा थ
3.       ा थ और अ     ा थ हो सकता है
4.   पूरी तरह से    ा थ और अ     ा थ नहीं हो सकता


Question Number : 139 Question Id : 103435141 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 116 of 158
Page 116 of 158
Text of page 116
At what temperature and pressure, real gas behaviour deviated as said by Ideal Gas Law?
Options :
1.   high temperature and low pressure
2.   high pressure and high temperature
3.   High pressure and low temperature
4.   low temperature and low pressure


Question Number : 139 Question Id : 103435141 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
आदश गैस िनयम के अनुसार िकस तापमान और दाब पर, वा          िवक गैस    वहार िवचिलत होता है ?
Options :
1.   उ    तापमान और िन दाब
2.   उ    दाब और उ      तापमान
3.   उ    दाब और कम तापमान
4.   कम तापमान और कम दाब


Question Number : 140 Question Id : 103435142 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the full form of CRO?
Options :
1.   Copper ray oscilloscope
2.   Copper rod Oscillator
3.   Cathode ray oscilloscope
4.   Cathode rod oscillator


Question Number : 140 Question Id : 103435142 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
CRO का पूण प        ा है ?
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 117 of 158
Page 117 of 158
Text of page 117
Options :
1.   कॉपर रे ऑिसलो    ोप
2.   कॉपर रोड ओिसलेटर
3.   कैथोड रे ऑिसलो    ोप
4.   कैथोड रॉड ओिसलेटर



                                                      Discipline3
Group Number :                                                  8
Group Id :                                                      1034358
Group Maximum Duration :                                        0
Group Minimum Duration :                                        0
Show Attended Group? :                                          No
Edit Attended Group? :                                          No
Break time :                                                    0
Group Marks :                                                   20
Is this Group for Examiner? :                                   No



                                                      Discipline3
Section Id :                                                    1034358
Section Number :                                                1
Section type :                                                  Online
Mandatory or Optional :                                         Mandatory
Number of Questions :                                           20
Number of Questions to be attempted :                           20
Section Marks :                                                 20
Enable Mark as Answered Mark for Review and Clear Response :    Yes
Sub-Section Number :                                            1
Sub-Section Id :                                                10343510
Question Shuffling Allowed :                                    Yes
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 118 of 158
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Text of page 118
Question Number : 141 Question Id : 103435143 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following DIP IC protects IC from high temperature and also high performance equipment?
Options :
1.   Plastic DIP
2.   Ceramic DIP
3.   Plat pack
4.   CSP


Question Number : 141 Question Id : 103435143 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सा DIP IC उ   तापमान और उ     दशन उपकरण से IC की र ा करता है ?
Options :
1.     ा   क DIP
2.   िसरे िमक DIP
3.     ेट पैक
4.   CSP


Question Number : 142 Question Id : 103435144 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The combination of OR and NOT gate is
Options :
1.   NAND gate
2.   AND gate
3.   NOR gate
4.   XOR gate


Question Number : 142 Question Id : 103435144 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 119 of 158
Page 119 of 158
Text of page 119
Correct Marks : 1 Wrong Marks : 0.25
OR और NOT गेट का संयोजन है
Options :
1.   NAND गेट
2.   AND गेट
3.   NOR गेट
4.   XOR गेट


Question Number : 143 Question Id : 103435145 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The 2's compliment of 010011 is
Options :
1.   110110
2.   101100
3.   100011
4.   101101


Question Number : 143 Question Id : 103435145 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
010011 का 2's पूरक है
Options :
1.   110110
2.   101100
3.   100011
4.   101101


Question Number : 144 Question Id : 103435146 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following combinational logic circuits is used as parallel to serial converter?
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 120 of 158
Page 120 of 158
Text of page 120
Options :
1.   Demultiplexer
2.   Decoder
3.   Multiplexer
4.   Encoder


Question Number : 144 Question Id : 103435146 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सा संयोजन लॉिजक सिकट सी रयल का उपयोग प रवतक के समानां तर के    प म िकया जाता है ?
Options :
1.   िवब संकेतक
2.   िडकोडर
3.   ब संकेतक
4.   एनकोडर


Question Number : 145 Question Id : 103435147 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the binary addition of 1100 and 0101?
Options :
1.   10001
2.   1101
3.   11001
4.   10011


Question Number : 145 Question Id : 103435147 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
1100 और 0101 का ि आधारी जोड़     ा है ?
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 121 of 158
Page 121 of 158
Text of page 121
1.   10001
2.   1101
3.   11001
4.   10011


Question Number : 146 Question Id : 103435148 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
बेिसक SP     प-   ॉप के िनमाण के िलए िकस गेट का   ॉस कपिलंग िकया जा सकता है ?
Options :
1.   AND और NOR गेट
2.   NOR गेट और NAND गेट
3.   AND और OR गेट
4.   OR और NAND गेट


Question Number : 146 Question Id : 103435148 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The cross coupling of which gates can be done to construct basic SP flip-flop?
Options :
1.   AND and NOR gate
2.   NOR gate and NAND gate
3.   AND and OR gate
4.   OR and NAND gate


Question Number : 147 Question Id : 103435149 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the singular point of the function f(z) = 1 ÷ (z-4)?
Options :
1.   4
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 122 of 158
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Text of page 122
2.   0
3.   -4
4.   2


Question Number : 147 Question Id : 103435149 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
फलन f(z) = 1 ÷ (z-4) का एकल िबंदु    ा है ?
Options :
1.   4
2.   0
3.   -4
4.   2


Question Number : 148 Question Id : 103435150 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
If the Fourier transform of f(x) i.e. F[f(x)] = f(s), then F[f(ax)] is equal to
Options :
1.    af (s)
2.    f (a÷s)
3.    sf(a)
4.    {f(s÷a)}÷a


Question Number : 148 Question Id : 103435150 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद f(x) का फूय   पा र, यानी F[f(x)] = f(s) तो F[f(ax)] िन के बराबर है ।
Options :
1.   af (s)
2.   f (a÷s)
3.   sf(a)
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 123 of 158
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Text of page 123
4.   {f(s÷a)}÷a


Question Number : 149 Question Id : 103435151 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following is the Laplace transform of 1?
Options :
1.   1 ÷ s2
2.   s
3.   1÷s
4.   2 ÷ s3


Question Number : 149 Question Id : 103435151 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सा 1 का ला   ास   पा र है ?
Options :
1.   1 ÷ s2
2.   s
3.   1÷s
4.   2 ÷ s3


Question Number : 150 Question Id : 103435152 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The energy of the quantum is the integral multiple of
Options :
1.   hν
2.   ν3
3.   h
4.   h2ν
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 124 of 158
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Text of page 124
Question Number : 150 Question Id : 103435152 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
   ां टम की ऊजा िन का समाकल गुणज है ।
Options :
1.      hν
2.   ν3
3.   h
4.   h2ν


Question Number : 151 Question Id : 103435153 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following is the value of Planck's constant?
Options :
1.   1.054 x 10-34 Js
2.   6.63 x 10-32 Js
3.   6.63 x 10-34 Js
4.   1.054 × 10-39 Js


Question Number : 151 Question Id : 103435153 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन       क िनयतां क का मान है ?
Options :
1.   1.054 x 10-34 Js
2.   6.63 x 10-32 Js
3.   6.63 x 10-34 Js
4.   1.054 x 10-39 Js
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 125 of 158
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Text of page 125
Question Number : 152 Question Id : 103435154 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The material object is said to be idealized blackbody when the object ________________.
Options :
1.   absorbs all the radiation fall on it
2.   reflect all the radiation fall on it.
3.   reflect and absorb some radiation fall on it
4.   neither absorb nor reflect the radiation fall on it.


Question Number : 152 Question Id : 103435154 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
भौितक व ु को आदश कृ      का कहा जाता है जब व   ु _________।
Options :
1.   उस पर पड़ने वाले सभी िविकरणों को अवशोिषत करता है
2.   उस पर पड़ने वाले सभी िविकरण को परावितत कर दे ता है ।
3.   उस पर पड़ने वाले कुछ िविकरण को परावितत और अवशोिषत करते ह
4.   उस पर पड़ने वाले िविकरण को न तो अवशोिषत करता है और न ही ितिबंिबत करता है ।


Question Number : 153 Question Id : 103435155 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the experiment of photoelectric effect, the maximum kinetic energy of the ejected electrons depends on the
Options :
1.    Number of electron
2.    Amplitude
3.    Intensity
4.    Frequency


Question Number : 153 Question Id : 103435155 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 126 of 158
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 काश-िवद् युत भाव के योग म, उ िजत इले          ॉनों की अिधकतम गितज ऊजा _________ पर िनभर करती है ।
Options :
1.   इले    ॉन की सं   ा
2.   आयाम
3.   इ े    टी
4.   आवृि


Question Number : 154 Question Id : 103435156 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following is the De-Broglie relation? Here k is wave number.
Options :
1.   k = p/ћ
2.   k = ћ/p
3.   k = h/p
4.   k = 2p/h


Question Number : 154 Question Id : 103435156 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन द- ॉई संबंध है ? यहाँ k तरं ग सं   ा है ।
Options :
1.   k = p/ћ
2.   k = ћ/p
3.   k = h/p
4.   k = 2p/h


Question Number : 155 Question Id : 103435157 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following crystal is used in Davission-Germer experiment to scatter the monoenergetic electron?
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 127 of 158
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Options :
1.   Nickel
2.   Copper
3.   Iron
4.   Zinc


Question Number : 155 Question Id : 103435157 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से िकस ि    ल का उपयोग डे िवसन-जमर योग म एक-ऊजा िविकरण इले      ॉन को िबखेरने के िलए िकया जाता है ?
Options :
1.   िनकल
2.   ता
3.   लोहा
4.   ज    ा


Question Number : 156 Question Id : 103435158 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following is known as the localized wave function?
Options :
1.   Eigen function
2.   phase velocity
3.   group velocity
4.   Wave packet


Question Number : 156 Question Id : 103435158 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से िकसे थानीयकृत तरं ग फलन के   प म जाना जाता है ?
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 128 of 158
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1.   अिभला िणक फलन
2.    ाव था वेग
3.   समूह वेग
4.   वेव पैकेट


Question Number : 157 Question Id : 103435159 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The result of the Double slit experiment with electrons tell us about?
Options :
1.   Particle nature only
2.   Charge of the particle
3.   Particle and wave nature
4.   Mass of the particle


Question Number : 157 Question Id : 103435159 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
इले ॉनों के साथ दो िझरी योग के प रणाम हम िन के बारे म बताते ह?
Options :
1.   केवल कण कृित
2.   कण का आवेश
3.   कण और तरं ग कृित
4.   कण का        मान


Question Number : 158 Question Id : 103435160 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
When one takes a modulus square of the wavefunction of a quantum particle, the result is
Options :
1.   Probability Density
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 129 of 158
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2.   Amplitude
3.   Eigen function
4.   Eigen vector


Question Number : 158 Question Id : 103435160 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
जब कोई ां टम कण के तरं गफलन का मापां क वग लेता है , तो प रणाम होता है
Options :
1.   संभािवत घन
2.   आयाम
3.   अिभला िणक फलन
4.   अिभला िणक सिदश


Question Number : 159 Question Id : 103435161 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The wave function of a quantum system having a single particle can be written as the linear combination of its
Options :
1.   Operators
2.   Eigen values
3.   Eigen functions
4.   Vectors


Question Number : 159 Question Id : 103435161 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एकल कण वाले       ां टम णाली के तरं ग फलन को उसके िन के रै खक संयोजन के   प म िलखा जा सकता है ।
Options :
1.   ऑपरे टर
2.   अिभला िणक मान
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 130 of 158
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3.   अिभला िणक फलन
4.   सिदश


Question Number : 160 Question Id : 103435162 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In which of the following radioactive decay, atomic number reduced by two?
Options :
1.   Alpha decay
2.   Beta decay
3.   Gamma decay
4.   Inverse decay


Question Number : 160 Question Id : 103435162 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से िकस रे िडयोधम   य म, परमाणु   मां क दो से कम हो जाता है ?
Options :
1.   अ   ा य
2.   बीटा य
3.   गामा य
4.    ितलोम य



                                                            Discipline4
Group Number :                                                            9
Group Id :                                                                1034359
Group Maximum Duration :                                                  0
Group Minimum Duration :                                                  0
Show Attended Group? :                                                    No
Edit Attended Group? :                                                    No
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Break time :                                                             0
Group Marks :                                                            20
Is this Group for Examiner? :                                            No



                                                          Discipline4
Section Id :                                                             1034359
Section Number :                                                         1
Section type :                                                           Online
Mandatory or Optional :                                                  Mandatory
Number of Questions :                                                    20
Number of Questions to be attempted :                                    20
Section Marks :                                                          20
Enable Mark as Answered Mark for Review and Clear Response :             Yes
Sub-Section Number :                                                     1
Sub-Section Id :                                                         10343511
Question Shuffling Allowed :                                             Yes

Question Number : 161 Question Id : 103435163 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In which among the following reaction, nucleus of the atom splits into two or more smaller nuclei?
Options :
1.   Fusion
2.   Beta decay
3.   Fission
4.   Half life


Question Number : 161 Question Id : 103435163 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से िकस अिभि या म, परमाणु का नािभक दो या अिधक छोटे नािभकों म िवभािजत हो जाता है ?
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 132 of 158
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Options :
1.   संलयन
2.   बीटा य
3.   िवख     न
4.   अध काल


Question Number : 162 Question Id : 103435164 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The region enclosed inside the optical cavity is known as
Options :
1.   Optical region
2.   Optical resonator
3.   Optical cell
4.   Optical box


Question Number : 162 Question Id : 103435164 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 कािशक को से बंद े को िन कहा जाता है
Options :
1.   ऑि कल े
2.   ऑि कल रे सोनेटर
3.   ऑि कल सेल
4.   ऑि कल बॉ


Question Number : 163 Question Id : 103435165 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Crystal diode converts AC into DC, it can be used as
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 133 of 158
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1.   Rectifier
2.   Amplifier
3.   Transistor
4.   Oscillator


Question Number : 163 Question Id : 103435165 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
ि   ल डायोड AC को DC म प रवितत करता है , इसका उपयोग िन के     प म िकया जा सकता है ।
Options :
1.   िद कारी
2.    वधक
3.   टां िज र
4.   दोलक


Question Number : 164 Question Id : 103435166 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following diode do not shows negative resistance?
Options :
1.   IMPATT diode
2.   Tunnel diode
3.   Gunn diode
4.   Laser diode


Question Number : 164 Question Id : 103435166 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सा डायोड ऋणा क ितरोध दिशत नहीं करता है ?
Options :
1.   IMPATT डायोड
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 134 of 158
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2.   टनेल डायोड
3.   गन डायोड
4.   लेजर डायोड


Question Number : 165 Question Id : 103435167 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What will be the value of emitter current if the base current is 0.05 mA and β = 100?
Options :
1.   2.55 mA
2.   3 mA
3.   4.35 mA
4.   5.05 mA


Question Number : 165 Question Id : 103435167 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद आधार धारा 0.05 mA और β = 100 हो तो उ जक धारा का मान    ा होगा?
Options :
1.   2.55 mA
2.   3 mA
3.   4.35 mA
4.   5.05 mA


Question Number : 166 Question Id : 103435168 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
An electronic device which increase the power of the signal is called as.
Options :
1.   Amplifier
2.   Rectifier
3.   Oscillator
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 135 of 158
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4.   Diode


Question Number : 166 Question Id : 103435168 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक इले ॉिनक उपकरण जो िस ल की श         को बढ़ाता है उसे कहा जाता है ।
Options :
1.    वधक
2.   िद कारी
3.   दोलक
4.   डायोड


Question Number : 167 Question Id : 103435169 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What will be the power gain (in decibel) of an amplifier which has the voltage gain 10 V/V and current gain 10 A/A?
Options :
1.   50 dB
2.   20 dB
3.   45 dB
4.   10 dB


Question Number : 167 Question Id : 103435169 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 वधक की श      ल   (डे िसबल म)   ा होगी िजसम िवभवां तर ल   10 V/V है और करं ट ल   10 A/A है ?
Options :
1.   50 dB
2.   20 dB
3.   45 dB
4.   10 dB
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 136 of 158
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Question Number : 168 Question Id : 103435170 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
At mid frequency, the voltage gain in the RC coupled amplifier is
Options :
1.   Zero
2.   Varies with frequency
3.   Constant
4.   1


Question Number : 168 Question Id : 103435170 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
म आवृि पर, RC यु     त वधक म िवभवां तर ल    है
Options :
1.   शू
2.   आवृि के साथ बदलता रहता है
3.   िनयतां क
4.   1


Question Number : 169 Question Id : 103435171 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following is also known as harmonic oscillator?
Options :
1.   RL oscillator
2.   Sinusoidal oscillator
3.   C oscillator
4.   Non-sinusoidal oscillator


Question Number : 169 Question Id : 103435171 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 137 of 158
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Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से िकसे सरल आवत दोलक के      प म भी जाना जाता है ?
Options :
1.   RL दोलक
2.        ा तरं ग दोलक
3.   C दोलक
4.   गैर-    ा तरं ग दोलक


Question Number : 170 Question Id : 103435172 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following is not a typical characteristic of an ideal OP-AMP?
Options :
1.   Zero output impedance
2.   infinite bandwidth
3.   Zero noise
4.   Zero open-loop gain


Question Number : 170 Question Id : 103435172 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सा आदश OP-AMP की ला िणक िवशेषता नहीं है ?
Options :
1.   शू     आउटपुट ितबाधा
2.   अनंत बडिवड् थ
3.   शू       िन
4.   शू     ओपन-लूप ल


Question Number : 171 Question Id : 103435173 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 138 of 158
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Correct Marks : 1 Wrong Marks : 0.25
What is shunted across the feedback capacitor to reduce the error voltage in practical integrator?
Options :
1.   Resistor
2.   Capacitor
3.   Inductor
4.   Oscillator


Question Number : 171 Question Id : 103435173 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 ै कल इं टी ेटर म ुिट िवभवां तर (एरर वो े ज) को कम करने के िलए पुनभरण संधा र (फीडबैक कैपेिसटर) म     ा शंट िकया जाता है ?
Options :
1.     ितरोधक
2.   संधा र
3.     ेरक
4.   दोलक


Question Number : 172 Question Id : 103435174 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The conversion speed of the analog to digital converter lies between
Options :
1.   10 ms - 100ms
2.   1ms - 100ms
3.   1µs - 100µs
4.   0.1 µs - 10µs


Question Number : 172 Question Id : 103435174 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एनालॉग से िडिजटल कनवटर की         पां तरण गित िन के बीच होती है ।
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 139 of 158
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Options :
1.   10 ms - 100ms
2.   1ms - 100ms
3.   1µs - 100µs
4.   0.1 µs - 10µs


Question Number : 173 Question Id : 103435175 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
An electron of mass m is moving freely inside an infinite potential well with the wall at x = 0 and x = 2a. What is the wave function of the first
excited state of the electron?
Options :
1.    ψ = A sin 2πx÷a
2.    ψ = A sin πx÷a
3.    ψ = A sin πx÷2a
4.    ψ = A sin 2πx÷4a


Question Number : 173 Question Id : 103435175 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
m      मान का इले ॉन, x = 0 और x = 2a पर दीवार के साथ अनंत पोटिशयल वेल म            तं    प से घूम रहा है । इले   ॉन की थम उ ेिजत अव था के िलए
तरं ग फलन ा है ?
Options :
1.    ψ = A sin 2πx÷a
2.    ψ = A sin πx÷a
3.    ψ = A sin πx÷2a
4.    ψ = A sin 2πx÷4a


Question Number : 174 Question Id : 103435176 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The ground state wave function of the particle of mass m confined in the region x = 0 and x = a of infinite square potential is given by
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 140 of 158
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ψ = A sin(πx÷a)
What is the value of normalization constant A?
Options :
1.   2÷√a
2.   4÷√a
3.   a÷2
4.   (√2 ÷a)


Question Number : 174 Question Id : 103435176 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
अनंत वग िवभव के े x = 0 और x = a म सीिमत         मान m के कण का मूल अव था तरं ग फलन िन   ारा िदया गया है
ψ = A sin(πx÷a)
सामा ीकरण िनयतां क A का मान ा है ?
Options :
1.   2÷√a
2.   4÷√a
3.   a÷2
4.   (√2 ÷a)


Question Number : 175 Question Id : 103435177 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Time independent Schrodinger equation is used when the Hamiltonian is independent of
Options :
1.   Time explicitly
2.   Time implicitly
3.   Wave function
4.   Energy


Question Number : 175 Question Id : 103435177 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 141 of 158
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Correct Marks : 1 Wrong Marks : 0.25
काल तं         ोिडं गर समीकरण का उपयोग तब िकया जाता है जब है िम   नी _________ से   तं होता है ।
Options :
1.   समय         तया (टाइम ए        िसटली)
2.   समय अ         ता (टाइम इ     ीिसटली)
3.   तरं ग फलन
4.   ऊजा


Question Number : 176 Question Id : 103435178 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The energy eigen values of the time-independent Schrodinger equation for the bound state of a system are
Options :
1.   Continuous or discrete
2.   not defined
3.   continuous
4.   discrete


Question Number : 176 Question Id : 103435178 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक णाली की बा        अव था के िलए काल        तं   ोिडं गर समीकरण का ऊजा अिभला िणक मान ह
Options :
1.   िनरं तर या असतत (िड        ीट) हो सकता है
2.   प रभािषत नहीं
3.   िनरं तर
4.   असतत (िड        ीट)


Question Number : 177 Question Id : 103435179 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 142 of 158
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Text of page 142
Which of the following is the Bohr quantization rule of angular momentum?
Options :
1.   L = nh
2.   L = nћ
3.   L = ћν
4.   L = hν


Question Number : 177 Question Id : 103435179 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सा कोणीय संवेग का बोहर प रमाणीकरण िनयम है ?
Options :
1.   L = nh
2.   L = nћ
3.   L = ћν
4.   L = hν


Question Number : 178 Question Id : 103435180 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The splitting of the spectral lines in the stark effect is due to
Options :
1.   weak Magnetic field
2.   Electric field
3.   Strong magnetic field
4.   Both electric and magnetic field


Question Number : 178 Question Id : 103435180 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 ाक भाव म वण मीय रे खाओं का िवभाजन िन के कारण होता है ।
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 143 of 158
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1.   कमजोर चुंबकीय े
2.   िवद् युत े
3.   मजबूत चुंबकीय े
4.   िवद् युत और चुंबकीय े दोनों


Question Number : 179 Question Id : 103435181 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The splitting of the spectral lines in the presence of weak magnetic field is known as
Options :
1.   Zeeman effect
2.   Paschen effect
3.   Seebeck effect
4.   Stark effect


Question Number : 179 Question Id : 103435181 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
कमजोर चुंबकीय े की उप थित म वण मीय रे खाओं के िवभाजन को कहा जाता है
Options :
1.   जेमान भाव
2.   पासचेन भाव
3.   सीबेक भाव
4.     ाक भाव


Question Number : 180 Question Id : 103435182 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In many-electron atoms, the energy of an orbital electron depends upon the
Options :
1.   n only
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 144 of 158
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Text of page 144
2.   l only
3.   Both n and l
4.   Neither n nor l


Question Number : 180 Question Id : 103435182 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
कई इले ॉन परमाणुओं म, क ीय इले    ान की ऊजा िनभर करती है
Options :
1.   केवल n पर
2.   केवल I पर
3.   n और l दोनों पर
4.   न तो n और न ही l पर



                                                           Discipline5
Group Number :                                                        10
Group Id :                                                            10343510
Group Maximum Duration :                                              0
Group Minimum Duration :                                              120
Show Attended Group? :                                                No
Edit Attended Group? :                                                No
Break time :                                                          0
Group Marks :                                                         20
Is this Group for Examiner? :                                         No



                                                           Discipline5
Section Id :                                                          10343510
Section Number :                                                      1
Section type :                                                        Online
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Mandatory or Optional :                                               Mandatory
Number of Questions :                                                 20
Number of Questions to be attempted :                                 20
Section Marks :                                                       20
Enable Mark as Answered Mark for Review and Clear Response :          Yes
Sub-Section Number :                                                  1
Sub-Section Id :                                                      10343512
Question Shuffling Allowed :                                          Yes

Question Number : 181 Question Id : 103435183 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the packing fraction of body centred cell (bcc) lattice?
Options :
1.   68%
2.   52.40%
3.   72%
4.   58%


Question Number : 181 Question Id : 103435183 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
शरीर कि त सेल जालक का पैिकंग अंश    ा है ?
Options :
1.   68%
2.   52.40%
3.   72%
4.   58%


Question Number : 182 Question Id : 103435184 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 146 of 158
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Text of page 146
Which among the following have same atomic factor?
Options :
1.   FCC and HCP
2.   BCC and SC
3.   HCP and BCC
4.   SC and FCC


Question Number : 182 Question Id : 103435184 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से िकसका परमाणु गुणक समान है ?
Options :
1.   FCC और HCP
2.   BCC और SC
3.   HCP और BCC
4.   SC और FCC


Question Number : 183 Question Id : 103435185 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The structure of the crystalline solid is
Options :
1.   irregular
2.   linear
3.   regular
4.   circular


Question Number : 183 Question Id : 103435185 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
ि   लीय ठोस की संरचना है
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 147 of 158
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Text of page 147
1.   अिनयिमत
2.   रै खक
3.   िनयिमत
4.   वृ ाकार


Question Number : 184 Question Id : 103435186 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following can be magnetised permanently?
Options :
1.   Diamagnetic
2.   ferromagnetic
3.   Antiferromagnetic
4.   Paramagnetic


Question Number : 184 Question Id : 103435186 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से िकसे थायी   प से चु   िकत िकया जा सकता है ?
Options :
1.    ितचु    कीय
2.   लौहचु     कीय
3.    ित-लौहचुंबकीय
4.   अनुचुंबकीय


Question Number : 185 Question Id : 103435187 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following acts as an insulator?
Options :
1.   Passive dielectric
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 148 of 158
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2.   active dielectric
3.   superconductors
4.   polarised particle


Question Number : 185 Question Id : 103435187 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सा िवद् युतरोधी के   प म काय करता है ?
Options :
1.   िन     य परावैद्युत
2.   सि य परावैद्युत
3.   अितचालक
4.    ुवीकृत कण


Question Number : 186 Question Id : 103435188 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The temperature above which ferroelectric material changes into dielectrics is called as ________________.
Options :
1.   Neel temperature
2.   curie temperature
3.   curie-Weiss temperature
4.   Non-critical temperature


Question Number : 186 Question Id : 103435188 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
वह तापमान िजसके ऊपर लौहिवद् युत साम ी परावैद्युत म बदल जाती है , उसे _________ कहा जाता है ।
Options :
1.   नील तापमान
2.        ूरी तापमान
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 149 of 158
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3.      ूरी-वीस तापमान
4.   गैर- ां ितक तापमान


Question Number : 187 Question Id : 103435189 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The energy gap between the conduction band and valence band is very large in________________.
Options :
1.   Semiconductors
2.   conductors
3.   insulators
4.   superconductors


Question Number : 187 Question Id : 103435189 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
चालन बड और संयोजकता बड के बीच ऊजा अंतराल _________ म ब त बड़ा है ।
Options :
1.   अधचालकों
2.   चालक
3.   िवद् युतरोधी
4.   अितचालक


Question Number : 188 Question Id : 103435190 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which one is not the property of the superconductor?
Options :
1.   Zero resistivity
2.   perfect diamagnetic
3.   crystal structure and thermal expansion remains constant
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 150 of 158
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4.   entropy and specific heat increases at transition temperature.


Question Number : 188 Question Id : 103435190 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
कौन सा अितचालक का गुण नहीं है ?
Options :
1.   शू    ितरोधकता
2.   सही ितचुंबकीय
3.   ि    ल संरचना और थमल िव       ार िनयतां क रहता है
4.   सं मण तापमान पर ए ॉपी और िविश ऊ             ा बढ़ जाती है ।


Question Number : 189 Question Id : 103435191 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Gauss's law in magnetostatics is ________________.
Options :
1.   div B =0
2.   div B = µJ
3.   div B = A
4.   Div B = σϵ


Question Number : 189 Question Id : 103435191 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
  थर चु िककी म गाउस का िनयम _________ है ।
Options :
1.   div B =0
2.   div B = µJ
3.   div B = A
4.   Div B = σϵ
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 151 of 158
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Text of page 151
Question Number : 190 Question Id : 103435192 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The plane wave is the simple solution of the Maxwell's equation for the time varying field in
Options :
1.   bounded and homogenous medium
2.   unbound and homogenous medium
3.   unbound and non-homogenous medium
4.   bounded and heterogenous medium


Question Number : 190 Question Id : 103435192 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
समतल तरं ग िन म समय प रवतनशील े के िलए मै      वेल समीकरण का सरलतम समाधान है ।
Options :
1.   सीिमत और सम प मा म
2.   अनबंधी और सम प मा म
3.   अनबंधी और गैर-सम प मा म
4.   प रबंिधत और िवषम मा म


Question Number : 191 Question Id : 103435193 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the value of reflection coefficient in the Brewster angle?
Options :
1.   0
2.   1
3.   infinity
4.   -1


Question Number : 191 Question Id : 103435193 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 152 of 158
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Text of page 152
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 ू र कोण म परावतन गुणां क का मान   ा है ?
Options :
1.   0
2.   1
3.   अनंत
4.   -1


Question Number : 192 Question Id : 103435194 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
When the electric field components in x and y direction are same, then it is the form of
Options :
1.   elliptical polarisation
2.   linear polarisation
3.   circular polarisation
4.   parallel polarisation


Question Number : 192 Question Id : 103435194 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
जब x और y िदशाओं म िवद् युत े के घटक समान होते ह, तो यह िन का   प होता है
Options :
1.   अ   ाकार (इिलि कल) ुवण
2.   रै खक ुवण
3.   वृ ाकार ुवण
4.   समानां तर ुवण


Question Number : 193 Question Id : 103435195 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 153 of 158
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Text of page 153
Correct Marks : 1 Wrong Marks : 0.25
The most preferred TE mode in the rectangular wave guide is
Options :
1.   TE10
2.   TE01
3.   TE11
4.   TE20


Question Number : 193 Question Id : 103435195 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
आयताकार तरं ग गाइड म सबसे पसंदीदा TE मोड है
Options :
1.   TE10
2.   TE01
3.   TE11
4.   TE20


Question Number : 194 Question Id : 103435196 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following is not the mode of the waveguide?
Options :
1.   TM
2.   TE
3.   TEM
4.   SEM


Question Number : 194 Question Id : 103435196 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 154 of 158
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Text of page 154
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से कौन सा तरं गपथक की िवधा नहीं है ?
Options :
1.   TM
2.   TE
3.   TEM
4.   SEM


Question Number : 195 Question Id : 103435197 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In classical statistics, all the particles are
Options :
1.    Distinguishable
2.    Indistinguishable
3.    Both distinguishable and indistinguishable
4.    Neither distinguishable nor indistinguishable


Question Number : 195 Question Id : 103435197 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
शा ीय सां    की म, सभी कण होते ह
Options :
1.   िविश
2.   अिववे
3.   दोनों िविश और अिववे
4.   न तो िविश और न ही अिववे


Question Number : 196 Question Id : 103435198 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
On increasing the temperature of an object, the peak wavelength of the black body spectrum
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 155 of 158
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Text of page 155
Options :
1.   Increases
2.   Decreases
3.   becomes Zero
4.   becomes constant


Question Number : 196 Question Id : 103435198 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िकसी व ु का तापमान बढ़ाने पर, कृ     का   े   म की चरम तरं ग दै   _________ हो जाती है ।
Options :
1.   बढ़ती है
2.   घटती है
3.   शू   हो जाता है
4.   िनयतां क हो जाता है


Question Number : 197 Question Id : 103435199 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the property does not possess by Photon?
Options :
1.   Rest mass
2.   Momentum
3.   Energy
4.   Frequency


Question Number : 197 Question Id : 103435199 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
कौन सा गुण फोटॉन म नहीं होता है ?
Options :
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 156 of 158
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Text of page 156
1.   िवराम (रे   )     मान
2.   संवेग
3.   ऊजा
4.   आवृि


Question Number : 198 Question Id : 103435200 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which among the following principle is not followed by Bose-Einstein Statistics?
Options :
1.   Aufbau principle
2.   Pauli's exclusion principle
3.   Hund's rule
4.   Heisenberg's Uncertainty Principle


Question Number : 198 Question Id : 103435200 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत म से िकस िस ां त का बोस-आइ   ाइन सां   की ारा पालन नहीं िकया जाता है ?
Options :
1.   आफबाऊ िस ा
2.   पाउली अपवजन िनयम
3.           का िनयम
4.   हाइज़नबग का अिनि तता िस ा


Question Number : 199 Question Id : 103435201 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The spin of the bosonic particles is
Options :
1.   Integral
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 157 of 158
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Text of page 157
2.   Half integral
3.   both integral and half integral
4.   -1


Question Number : 199 Question Id : 103435201 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
बोसॉिनक कणों का च ण _________ होता है ।
Options :
1.   समाकलन
2.   आधा समाकलन
3.   दोनों समाकलन और आधा समाकलन
4.   -1


Question Number : 200 Question Id : 103435202 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
___________is not example of Fermion.
Options :
1.   Photon
2.   Electron
3.   Neutron
4.   Proton


Question Number : 200 Question Id : 103435202 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
___________ फिमऑन का उदाहरण नहीं है ।
Options :
1.   फोटॉन
2.   इले   ॉन
DSSSB Lab Assistant 2021 question paper, 28 August 2021, Laboratory Assistant (Physics), Shift 2, page 158 of 158
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Text of page 158
3.   ूटॉन
4.   ोटॉन
Page 1 of 158

Source: Delhi Subordinate Services Selection Board. Question paper published by Delhi Subordinate Services Selection Board.

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