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DSSSB 2021: 13 September, Senior Scientific Assistant (Ballistics), Shift 2

  • Date: 13 September 2021
  • Shift: 2
  • Language: Bilingual
  • 175 pages
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 1 of 175
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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 :                                                        Senior Scientific Assistant Ballistics
Subject Name :                                                               Senior Scientific Assistant (Ballistics)
Creation Date :                                                              2021-09-13 16:51:28
Duration :                                                                   120
Total Marks :                                                                200
Display Marks:                                                               Yes
Share Answer Key With Delivery Engine :                                      No
Actual Answer Key :                                                          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 :                                                                   927759261
Group Maximum Duration :                                                     0
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 2 of 175
Page 2 of 175
Text of page 2
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 Ability
Section Id :                                                           927759287
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 :                                                       927759340
Question Shuffling Allowed :                                           Yes

Question Number : 1 Question Id : 9277597297 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A series is given with one term missing. Select the CORRECT alternative from the given ones that will complete the series.

JG, LH, NI, PJ, RK, ?
Options :
1.   SL
2.   TL
3.   SM
4.   TM
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 3 of 175
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Question Number : 1 Question Id : 9277597297 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक अनु म िदया गया है , िजसम से एक पद लु   है । िदए गए िवक   ों म से वह सही िवक   चुिनए, जो अनु म को पूरा करे ।

JG, LH, NI, PJ, RK, ?
Options :
1.   SL
2.   TL
3.   SM
4.   TM


Question Number : 2 Question Id : 9277597298 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A series is given with one term wrong. Select that WRONG term from the given alternatives.

SNF, UQL, WTN, YWR, AZV
Options :
1.   SNF
2.   UQL
3.   WTN
4.   AZV


Question Number : 2 Question Id : 9277597298 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक अनु म िदया गया है , िजसम से एक पद गलत है । िदए गए िवक    ों म से उस गलत पद को चुिनए।

SNF, UQL, WTN, YWR, AZV
Options :
1.   SNF
2.   UQL
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3.   WTN
4.   AZV


Question Number : 3 Question Id : 9277597299 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the following question, select the odd letter/letters from the given alternatives.
Options :
1.    XT
2.    LH
3.    QM
4.    VS


Question Number : 3 Question Id : 9277597299 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत      म िदए गए िवक   ों म से िवषम अ र/अ रों को चुिनए।
Options :
1.   XT
2.   LH
3.   QM
4.   VS


Question Number : 4 Question Id : 9277597300 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the following question, select the related letters from the given alternatives.

CN : FK :: PV : ?
Options :
1.   US
2.   SS
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 5 of 175
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3.   RS
4.   SU


Question Number : 4 Question Id : 9277597300 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत      म िदए गए िवक   ों म से संबंिधत अ रों को चुिनए।

CN : FK :: PV : ?
Options :
1.   US
2.   SS
3.   RS
4.   SU


Question Number : 5 Question Id : 9277597301 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the following question, select the related letters from the given alternatives.

DVXJ : HADG :: PQUB : ?
Options :
1.   TVAX
2.   RUAX
3.   RUBY
4.   TVAY


Question Number : 5 Question Id : 9277597301 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत      म िदए गए िवक   ों म से संबंिधत अ रों को चुिनए।

DVXJ : HADG :: PQUB : ?
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Options :
1.   TVAX
2.   RUAX
3.   RUBY
4.   TVAY


Question Number : 6 Question Id : 9277597302 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In a certain code language, ‘EARTH’ is written as ‘5’, ‘CHLORINE’ is written as ‘8’. What is the code for ‘MAGNETISM’ in that code
language?
Options :
1.    7
2.    8
3.    9
4.    10


Question Number : 6 Question Id : 9277597302 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक िविश कोड भाषा म, ‘EARTH’ को ‘5’ िलखा जाता है , ‘CHLORINE’ को ‘8’ िलखा जाता है । उसी कोड भाषा म ‘MAGNETISM’ का कोड                          ा है ?
Options :
1.   7
2.   8
3.   9
4.   10


Question Number : 7 Question Id : 9277597303 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In a certain code language, ‘Where do I walk’ is written as ‘@ # ( $’, ‘You should walk daily’ is written as ‘% & * #’, ‘I hate you’ is written as ‘^
@ &’. What is the code for ‘should hate daily’ in that code language?
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Options :
1.   ^*%
2.   ^(%
3.   *&^
4.   #@^


Question Number : 7 Question Id : 9277597303 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक िविश कोड भाषा म, ‘Where do I walk’ को ‘@ # ( $’ िलखा जाता है , ‘You should walk daily’ को ‘% & * #’ िलखा जाता है , ‘I hate you’ को ‘^ @
&’ िलखा जाता है । उसी कोड भाषा म ‘should hate daily’ का कोड ा है ?
Options :
1.   ^*%
2.   ^(%
3.   *&^
4.   #@^


Question Number : 8 Question Id : 9277597304 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Five persons A, B, C, D and E sit in a straight line facing towards the north (not necessarily in the same order). C sits third to the right of D. One
person sits between A and C. B sits second to the left of E. Who sits in the middle of the line?
Options :
1.   A
2.   B
3.   C
4.   E


Question Number : 8 Question Id : 9277597304 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
पाँ च      A, B, C, D तथा E एक सीधी रे खा म उ र की ओर मुख करके बैठते ह (ज री नहीं की इसी              म म हो)। C, D के दायीं ओर से तीसरे थान पर
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बैठा है । A तथा C के बीच म एक       बैठा है । B, E के बायीं ओर से दू सरे थान पर बैठा है । पं   के म   म कौन बैठा है ?
Options :
1.    A
2.    B
3.    C
4.    E


Question Number : 9 Question Id : 9277597305 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A team of five members is to be selected among eight members A, B, C, D, E, F, G and H. A and G have to be selected together. C and H have to
be selected together. B and E cannot be selected together. G and F cannot be selected together. Which of the following members can be selected?
Options :
1.    BCDEH
2.    ABCDG
3.    ABDEG
4.    BCDFH


Question Number : 9 Question Id : 9277597305 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
आठ सद A, B, C, D, E, F, G तथा H म से पाँ च सद ों की एक टीम को चुनना है । A तथा G को एक साथ चुनना है । C तथा H को एक साथ चुनना है । B
तथा E को एक साथ नहीं चुन सकते ह। G तथा F को एक साथ नहीं चुन सकते ह। िन िल खत म से कौन से सद ों को चुना जा सकता है ?
Options :
1.   BCDEH
2.   ABCDG
3.   ABDEG
4.   BCDFH


Question Number : 10 Question Id : 9277597306 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
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In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements
to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given
conclusion logically follows the given statements.

Statements :
I. All A are B.
II. Some B are C.

Conclusions :
I. Some C are A.
II. All B are A.
Options :
1.    Only conclusion I follows
2.    Only conclusion II follows
3.    Both conclusion I and II follows
4.    Neither conclusion follows


Question Number : 10 Question Id : 9277597306 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
नीचे िदए गए    म कुछ कथन और उनके बाद उन कथनों पर आधा रत कुछ िन ष िदए गए ह। िदए गए कथनों को सही माने, चाहे उनम सामा                  ात त ों
से िभ ता हो। सभी िन ष पढ़ और िफर िनधा रत कर िक िदए गए कौन से िन ष, िदए गए कथनों के आधार पर यु संगत ह।

कथन :

I. सभी A, B ह।
II. कुछ B, C ह।

िन   ष:

I. कुछ C, A ह।
II. सभी B, A ह।
Options :
1.   केवल िन      ष I अनुसरण करता है
2.   केवल िन      ष II अनुसरण करता है
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 10 of 175
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3.   दोनों िन      ष I तथा II अनुसरण करते ह
4.   कोई भी िन       ष अनुसरण नहीं करता है


Question Number : 11 Question Id : 9277597307 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements
to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given
conclusion logically follows the given statements.

Statements :

I. All F are M.
II. All M are T.

Conclusions :

I. All F are T.
II. Some M are F.
III. Some T are F.
Options :
1.     Both conclusion I and II follows
2.     Only conclusion III follows
3.     Only conclusion II follows
4.     All conclusion follows


Question Number : 11 Question Id : 9277597307 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
नीचे िदए गए    म कुछ कथन और उनके बाद उन कथनों पर आधा रत कुछ िन ष िदए गए ह। िदए गए कथनों को सही माने, चाहे उनम सामा                  ात त ों
से िभ ता हो। सभी िन ष पढ़ और िफर िनधा रत कर िक िदए गए कौन से िन ष, िदए गए कथनों के आधार पर यु संगत ह।

कथन :

I. सभी F, M ह।
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II. सभी M, T ह।

िन   ष:

I. सभी F, T ह।
II. कुछ M, F ह।
III. कुछ T, F ह।
Options :
1.   दोनों िन      ष I तथा II अनुसरण करते ह
2.   केवल िन       ष III अनुसरण करता है
3.   केवल िन       ष II अनुसरण करता है
4.   सभी िन     ष अनुसरण करते ह


Question Number : 12 Question Id : 9277597308 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the following question, select the missing number from the given series.

45, 82, 119, 156, ?
Options :
1.    184
2.    183
3.    193
4.    194


Question Number : 12 Question Id : 9277597308 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म दी गई ृंखला म से लु     अंक ात कीिजए।

45, 82, 119, 156, ?
Options :
1.   184
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2.    183
3.    193
4.    194


Question Number : 13 Question Id : 9277597309 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the following question, select the missing number from the given series.

6, 12, 24, 30, 60, 66, ?
Options :
1.    72
2.    78
3.    132
4.    122


Question Number : 13 Question Id : 9277597309 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत        म दी गई ृंखला म से लु   अंक ात कीिजए।

6, 12, 24, 30, 60, 66, ?
Options :
1.    72
2.    78
3.    132
4.    122


Question Number : 14 Question Id : 9277597310 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 13 of 175
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Options :
1.   8
2.   25
3.   33
4.   35


Question Number : 14 Question Id : 9277597310 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :
1.   8
2.   25
3.   33
4.   35
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Question Number : 15 Question Id : 9277597311 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Tarun walks 8 km towards the north. He turns to the left and walks 10 km. He again turns to the left and walks 8 km. In which direction is he now
from the starting point?
Options :
1.   East
2.   West
3.   North-East
4.   South-East


Question Number : 15 Question Id : 9277597311 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
त ण उ र की ओर 8 िक.मी. चलता है । वह बायीं ओर मुड़ता है तथा 10 िक.मी. चलता है । वह पुनः बायीं ओर मुड़ता है तथा 8 िक.मी. चलता है । वह आरं िभक
िबंदु से अब कौन सी िदशा म है ?
Options :
1.   पूव
2.   पि म
3.   उ र-पूव
4.   दि ण-पूव


Question Number : 16 Question Id : 9277597312 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Point A is 4 metres west of point B. Point C is 3 metres south of point B. Point D is 4 metres east of point C. Point E is 9 metres north of point D.
How far and in which direction is point E from point A?
Options :
1.    12 metre, North-East
2.    12 metre, South-West
3.    10 metre, North-East
4.    10 metre, South-West
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 15 of 175
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Question Number : 16 Question Id : 9277597312 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िबंदु A िबंदु B से 4 मीटर पि म म है । िबंदु C िबंदु B से 3 मीटर दि ण म है । िबंदु D िबंदु C से 4 मीटर पूव म है । िबंदु E िबंदु D से 9 मीटर उ र म है । िबंदु E
िबंदु A से िकतना दू र तथा कौन सी िदशा म है ?
Options :
1.    12 मीटर, उ र-पूव
2.    12 मीटर, दि ण-पि म
3.    10 मीटर, उ र-पूव
4.    10 मीटर, दि ण-पि म


Question Number : 17 Question Id : 9277597313 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :



1.




2.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 16 of 175
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Text of page 16
3.




4.



Question Number : 17 Question Id : 9277597313 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :



1.




2.




3.




4.
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Question Number : 18 Question Id : 9277597314 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :



1.




2.




3.




4.



Question Number : 18 Question Id : 9277597314 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 18 of 175
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Text of page 18
Options :



1.




2.




3.




4.



Question Number : 19 Question Id : 9277597315 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 19 of 175
Page 19 of 175
Text of page 19
Options :




1.




2.




3.




4.



Question Number : 19 Question Id : 9277597315 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 20 of 175
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Text of page 20
Options :




1.




2.




3.




4.



Question Number : 20 Question Id : 9277597316 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 21 of 175
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Options :
1.   6
2.   7
3.   8
4.   10


Question Number : 20 Question Id : 9277597316 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :
1.   6
2.   7
3.   8
4.   10
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General Awareness
Group Number :                                                        2
Group Id :                                                            927759262
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 :                                                          927759288
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 :                                                      927759341
Question Shuffling Allowed :                                          Yes

Question Number : 21 Question Id : 9277597317 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Gulbarga fort is situated in which state of India?
Options :
1.   Andhra Pradesh
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Text of page 23
2.   Tamil Nadu
3.   Karnataka
4.   Kerala


Question Number : 21 Question Id : 9277597317 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
गुलबगा िकला भारत के िकस रा     म थत है ?
Options :
1.   आं     दे श
2.   तिमलनाडु
3.   कनाटक
4.   केरल


Question Number : 22 Question Id : 9277597318 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following pair of regional music – state is CORRECT?

I. Lotia – Rajasthan
II. Laman – Himachal Pradesh
Options :
1.    Only I
2.    Only II
3.    Both I and II
4.    Neither I nor II


Question Number : 22 Question Id : 9277597318 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 े ीय संगीत – रा   का िन िल खत म से कौन सा यु   सही है ?
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I. लोिटया – राज थान
II. लमन – िहमाचल दे श
Options :
1.   केवल I
2.   केवल II
3.   I तथा II दोनों
4.   ना तो I ना तो II


Question Number : 23 Question Id : 9277597319 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The special case of oligopoly where there are exactly two sellers is called ________.
Options :
1.   Duopoly
2.   Monopolistic Competition
3.   Monopoly
4.   Perfect Competition


Question Number : 23 Question Id : 9277597319 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
अ िधकार की एक िवशेष थित िजसम केवल दो िव े ता होते ह उसे ________ कहते ह।
Options :
1.   ि -अिधकार
2.   एकिधकारी ित        धा
3.   एकािधकार
4.   पूण ित     धा


Question Number : 24 Question Id : 9277597320 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
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Which of the following is a monetary policy instrument of Reserve Bank of India?

I. Liquidity Adjustment Facility
II. Minimum Selling Price
Options :
1.    Only I
2.    Only II
3.    Both I and II
4.    Neither I nor II


Question Number : 24 Question Id : 9277597320 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 भारतीय रज़व बक की मौि क नीित की एक िल खत है ?

I. चलिनिध समायोजन सुिवधा
II. ूनतम समथन मू
Options :
1.   केवल I
2.   केवल II
3.   I तथा II दोनों
4.   ना तो I ना तो II


Question Number : 25 Question Id : 9277597321 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Human body works within the pH range of ______ to ______.
Options :
1.   6; 6.8
2.   7; 7.8
3.   8; 8.5
4.   4; 5
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Question Number : 25 Question Id : 9277597321 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
मनु शरीर ______ से ______ pH के बीच काय करता है ।
Options :
1.   6; 6.8
2.   7; 7.8
3.   8; 8.5
4.   4; 5


Question Number : 26 Question Id : 9277597322 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following disease is NOT caused by virus?
Options :
1.   Common cold
2.   Influenza
3.   Dengue fever
4.   Typhoid fever


Question Number : 26 Question Id : 9277597322 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 रोग िवषाणु ारा नही ं होता है ?
Options :
1.   खाँ सी-जुकाम
2.   इं   ुएंज़ा
3.   डगु बुखार
4.   टायफॉयड बुखार
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Question Number : 27 Question Id : 9277597323 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following statement is CORRECT?

I. Potassium and sodium react violently with cold water.
II. Aqua regia is a highly corrosive fuming liquid.
Options :
1.    Only I
2.    Only II
3.    Both I and II
4.    Neither I nor II


Question Number : 27 Question Id : 9277597323 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 कथन सही है ?

I. पोटै िशयम एवं सोिडयम ठं डे जल के साथ तेजी से अिभि या करते ह।
II. ए ा रे िजया भभकता व होने के साथ बल सं ारक है । ए ा रे िजया एक अ िधक सं ारक धूआं तरल है ।
Options :
1.   केवल I
2.   केवल II
3.   I तथा II दोनों
4.   ना तो I ना तो II


Question Number : 28 Question Id : 9277597324 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 freshwater lake?
Options :
1.   Dal Lake
2.   Loktak Lake
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 28 of 175
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3.   Barapani Lake
4.   Sambhar Lake


Question Number : 28 Question Id : 9277597324 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 एक मीठे पानी की झील नही ं है ?
Options :
1.   डल झील
2.   लोकताक झील
3.   बड़ापानी झील
4.   सां भर झील


Question Number : 29 Question Id : 9277597325 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
India shares its land boundaries with ______ and ______ in the north-west.
Options :
1.    Pakistan; Afghanistan
2.    Pakistan; China
3.    Nepal; Bhutan
4.    Myanmar; Bangladesh


Question Number : 29 Question Id : 9277597325 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
भारत उ र-पि म म ______ और ______ के साथ अपनी भूिम सीमा साझा करता है ।
Options :
1.   पािक   ान; अफ़गािन    ान
2.   पािक   ान; चीन
3.   नेपाल; भूटान
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4.      ां मार; बां   ादे श


Question Number : 30 Question Id : 9277597326 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The oldest veda is ______.
Options :
1.   Rigveda
2.   Samaveda
3.   Yajurveda
4.   Atharvaveda


Question Number : 30 Question Id : 9277597326 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
सबसे पुराना वेद ______ है ।
Options :
1.   ऋ ेद
2.   सामवेद
3.   यजुवद
4.   अथववेद


Question Number : 31 Question Id : 9277597327 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In which year Vasco da Gama came to India?
Options :
1.   1498
2.   1496
3.   1492
4.   1495
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Question Number : 31 Question Id : 9277597327 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
वा ो डी गामा भारत म िकस वष आया था?
Options :
1.   1498
2.   1496
3.   1492
4.   1495


Question Number : 32 Question Id : 9277597328 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Banabhatta was a court poet of ______.
Options :
1.   Samudragupta
2.   Harshavardhan
3.   Chandragupta
4.   Ashok


Question Number : 32 Question Id : 9277597328 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
बाणभ ______ के दरबारी किव थे।
Options :
1.   समु गु
2.   हषवधन
3.   च गु
4.   अशोक
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Question Number : 33 Question Id : 9277597329 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following statement is CORRECT?

I. Cotton was probably grown at Mehrgarh from about 7000 years ago.
II. The Harappans made seals out of stone.
Options :
1.    Only I
2.    Only II
3.    Both I and II
4.    Neither I nor II


Question Number : 33 Question Id : 9277597329 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 कथन सही है ?

I. संभवतः 7000 वष पहले मेहरगढ़ म कपास की खेती होती थी।
II. हड़ ा स ता के लोग प र की मुहरे बनाते थे।
Options :
1.   केवल I
2.   केवल II
3.   I तथा II दोनों
4.   ना ही I ना ही II


Question Number : 34 Question Id : 9277597330 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In September 2020, which country has appointed the former Australian Prime Minister Tony Abbott as a trade advisor?
Options :
1.   United Kingdom
2.   United States of America
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 32 of 175
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3.   China
4.   France


Question Number : 34 Question Id : 9277597330 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िसतंबर 2020 म, िकस दे श ने ऑ े िलया के पूव धानमं ी टोनी एबॉट को     ापार सलाहकार िनयु   िकया है ?
Options :
1.   यूनाइटे ड िकंगडम
2.   संयु     रा   अमे रका
3.   चीन
4.     ां स


Question Number : 35 Question Id : 9277597331 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 a transgender awardee of Padma Shri in 2021?
Options :
1.   Matha B. Manjamma Jogati
2.   Prithika Yashini
3.   Nadia Almada
4.   Laxmi Narayan Tripathi


Question Number : 35 Question Id : 9277597331 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 2021 म प      ी का एक टां सजडर पुर   ार िवजेता है ?
Options :
1.   मथा बी. मंज     ा जोगती
2.   पृिथका यिशनी
3.   नािदया अ      ाडा
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4.   ल    ी नारायण ि पाठी


Question Number : 36 Question Id : 9277597332 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which article of Indian constitution is related with equality of opportunity in matters of public employment?
Options :
1.   Article 13
2.   Article 12
3.   Article 16
4.   Article 17


Question Number : 36 Question Id : 9277597332 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
भारतीय संिवधान का कौन सा अनु े द लोक िनयोजन के िवषय म अवसर की समता से संबंिधत है ?
Options :
1.   अनु े द 13
2.   अनु े द 12
3.   अनु े द 16
4.   अनु े द 17


Question Number : 37 Question Id : 9277597333 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following statement is CORRECT regarding the Indian constitution?

I. Constitution of India came into force on 26 January 1949.
II. Article 74(1) of the Indian constitution provides that there shall be a council of Ministers with Prime Minister as its head to aid and advice the
president.
Options :
1.    Only I
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 34 of 175
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2.   Only II
3.   Both I and II
4.   Neither I nor II


Question Number : 37 Question Id : 9277597333 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 कथन भारतीय संिवधान के संदभ म सही है ?

I. 26 जनवरी 1949 को भारत का संिवधान वृ     आ था।
II. भारतीय संिवधान के अनु े द 74(1) म यह ावधान है िक रा पित की सहायता करने तथा उसे सलाह दे ने के िलए एक मं ी प रषद होगा िजसके मुख
  धानमं ी होंगे।
Options :
1.   केवल I
2.   केवल II
3.   I तथा II दोनों
4.   ना ही I ना ही II


Question Number : 38 Question Id : 9277597334 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 to win an individual gold medal in the Olympics?
Options :
1.   Neeraj Chopra
2.   Abhinav Bindra
3.   Marry Kom
4.   K.D. Jadhav


Question Number : 38 Question Id : 9277597334 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 ओलंिपक म         गत    ण पदक जीतने वाले पहले भारतीय ह?
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 35 of 175
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Options :
1.   नीरज चोपड़ा
2.   अिभनव िब ा
3.   मैरी कॉम
4.   के.डी. जाधव


Question Number : 39 Question Id : 9277597335 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Lovlina Borgohain is associated with which sports?
Options :
1.   Javelin Throw
2.   Boxing
3.   Football
4.   Table Tennis


Question Number : 39 Question Id : 9277597335 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
लवलीना बोरगोहे न िकस खेल से संबंिधत ह?
Options :
1.   जैविलन ो
2.   मु     े बाजी
3.   फूटबॉल
4.   टे बल टे िनस


Question Number : 40 Question Id : 9277597336 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which country will host the 2032 Summer Olympic games?
Options :
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 36 of 175
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1.   Australia
2.   South Africa
3.   United States of America
4.   China


Question Number : 40 Question Id : 9277597336 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
2032 ी कालीन ओलंिपक खेलों की मेज़बानी कौन सा दे श करे गा?
Options :
1.   ऑ े िलया
2.   दि ण अ ीका
3.   संयु   रा   अमे रका
4.   चीन



                                                   Arithmetic Ability
Group Number :                                                        3
Group Id :                                                            927759263
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



                                                   Arithmetic Ability
Section Id :                                                          927759289
Section Number :                                                      1
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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 :                                                      927759342
Question Shuffling Allowed :                                          Yes

Question Number : 41 Question Id : 9277597337 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :

1.



2.



3.



4.



Question Number : 41 Question Id : 9277597337 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 38 of 175
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Text of page 38
Options :

1.



2.



3.



4.



Question Number : 42 Question Id : 9277597338 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
If the sum of a number and its square is 210, then what is the number?
Options :
1.    13
2.    14
3.    12
4.    11


Question Number : 42 Question Id : 9277597338 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद एक सं   ा तथा उसके वग का योग 210 है , तो वह सं   ा   ा है ?
Options :
1.   13
2.   14
3.   12
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4.   11


Question Number : 43 Question Id : 9277597339 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Average of five numbers is 45. If 4 is subtracted from each number, then what will be the new average?
Options :
1.   40
2.   41
3.   49
4.   42.5


Question Number : 43 Question Id : 9277597339 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
पाँ च सं ाओं का औसत 45 है । यिद       ेक सं   ा म से 4 को घटाया जाता है , तो नया औसत      ा होगा?
Options :
1.     40
2.     41
3.     49
4.     42.5


Question Number : 44 Question Id : 9277597340 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Cost price of a fan is Rs. 3200. After giving a discount of 30 percent, it is sold at a profit of 75 percent. Marked price is how much percent more
than the cost price?
Options :
1.    50 percent
2.    120 percent
3.    125 percent
4.    150 percent
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Question Number : 44 Question Id : 9277597340 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक पंखे का   य मू   3200 पये है । 30 ितशत की छूट दे ने के प ात् इसे 75 ितशत के लाभ पर बेचा गया है । अंिकत मू    ,   य मू   से िकतना ितशत
अिधक है ?
Options :
1.   50 ितशत
2.   120 ितशत
3.   125 ितशत
4.   150 ितशत


Question Number : 45 Question Id : 9277597341 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A number is increased by 15 percent. If number become 713 after increment, then what was the original number?
Options :
1.   628
2.   606
3.   620
4.   614


Question Number : 45 Question Id : 9277597341 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक सं ा को 15 ितशत से बढ़ाया गया है । यिद बढ़ोतरी के प ात् सं     ा 713 हो जाती है , तो वा   िवक सं   ा   ा थी?
Options :
1.   628
2.   606
3.   620
4.   614
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Question Number : 46 Question Id : 9277597342 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Income of Suraj is 45 percent more than income of Manoj and Income of Suraj is 10 percent less than the income of Vishal. If Vishal’s income is
Rs. 29000, then what is the income of Manoj?
Options :
1.   Rs. 18000
2.   Rs. 21000
3.   Rs. 20400
4.   Rs. 14355


Question Number : 46 Question Id : 9277597342 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
सूरज की आय मनोज की आय से 45 ितशत अिधक है तथा सूरज की आय िवशाल की आय से 10 ितशत कम है । यिद िवशाल की आय 29000 पये है , तो
मनोज की आय ा है ?
Options :
1.   18000 पये
2.   21000 पये
3.   20400 पये
4.   14355 पये


Question Number : 47 Question Id : 9277597343 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Selling price and cost price of a table are Rs. 5664 and Rs. 4800 respectively. What is the profit percentage?
Options :
1.    22 percent
2.    18 percent
3.    16 percent
4.    15 percent
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 42 of 175
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Question Number : 47 Question Id : 9277597343 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक मेज के िव य मू      तथा    य मू     मशः 5664 पये तथा 4800 पये है । लाभ ितशत             ा है ?
Options :
1.   22 ितशत
2.   18 ितशत
3.   16 ितशत
4.   15 ितशत


Question Number : 48 Question Id : 9277597344 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A bag is sold at a loss of 10 percent. If it had been sold for Rs. 3360 more, then there would be a profit of 20 percent with respect to the selling
price. What was the original selling price?
Options :
1.    Rs. 10080
2.    Rs. 9850
3.    Rs. 11200
4.    Rs. 8640


Question Number : 48 Question Id : 9277597344 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक बैग को 10 ितशत की हािन पर बेचा गया है । यिद इसे 3360 पये अिधक पर बेचा गया होता, तो िव य मू               के संदभ म लाभ 20 ितशत होगा।
वा िवक िव य मू     ा था?
Options :
1.   10080 पये
2.   9850 पये
3.   11200 पये
4.   8640 पये
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Question Number : 49 Question Id : 9277597345 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
X : Y = 3 : 5. If Y – X = 858, then what is the value of (X + Y)?
Options :
1.   3432
2.   2872
3.   2454
4.   2216


Question Number : 49 Question Id : 9277597345 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
X : Y = 3 : 5. यिद Y – X = 858 है , तो (X + Y) का मान   ा है ?
Options :
1.   3432
2.   2872
3.   2454
4.   2216


Question Number : 50 Question Id : 9277597346 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Incomes of Kushal and Dinesh is 5 : 8 respectively. Kushal’s income is increased by Rs. 5000 and the ratio of income of Kushal and Dinesh
becomes 3 : 4. What is the income of Dinesh?
Options :
1.   Rs. 32000
2.   Rs. 36000
3.   Rs. 38000
4.   Rs. 40000


Question Number : 50 Question Id : 9277597346 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 44 of 175
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Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
कुशाल तथा िदनेश की आय का अनुपात 5 : 8 है । कुशाल की आय को 5000 पये से बढ़ाया गया है तथा कुशाल और िदनेश की आय का अनुपात 3 : 4 हो जाता
है । िदनेश की आय ा है ?
Options :
1.   32000 पये
2.   36000 पये
3.   38000 पये
4.   40000 पये


Question Number : 51 Question Id : 9277597347 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A sum of Rs. 63000 is lent at the rate of simple interest. If the rate of interest is 12 percent per annum, then what will be interest for three years?
Options :
1.   Rs. 24560
2.   Rs. 23320
3.   Rs. 22680
4.   Rs. 20400


Question Number : 51 Question Id : 9277597347 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक 63000 पये की रािश को साधारण           ाज की दर से उधार िदया गया है । यिद     ाज की दर 12 ितशत ित वष है , तो 3 वष के िलए           ाज    ा होगा?
Options :
1.   24560 पये
2.   23320 पये
3.   22680 पये
4.   20400 पये


Question Number : 52 Question Id : 9277597348 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 45 of 175
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Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Simple interest on a sum is Rs. 36900 for 3 years at the rate of 15 percent per annum. What will be the compound interest (compounding
annually) on the same sum at the rate of 20 percent per annum for three years?
Options :
1.   Rs. 59696
2.   Rs. 62146
3.   Rs. 64236
4.   Rs. 65912


Question Number : 52 Question Id : 9277597348 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक रािश पर 15 ितशत ित वष की दर से 3 वष के िलए साधारण           ाज 36900 पये है । समान रािश पर 20 ितशत ित वष की दर से तीनों वष के िलए
च वृ      ाज (वािषक संयोजन पर) ा होगा?
Options :
1.   59696 पये
2.   62146 पये
3.   64236 पये
4.   65912 पये


Question Number : 53 Question Id : 9277597349 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Speed of a car is 10 metre/second. How much time will it take to cover a distance of 126 km?
Options :
1.   3 hours 30 minutes
2.   4 hours
3.   7 hours
4.   8 hours 40 minutes


Question Number : 53 Question Id : 9277597349 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 46 of 175
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Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक कार की गित 10 मीटर/सेकंड है । एक 126 िक.मी. की दू री को तय करने यह िकतना समय लेगी?
Options :
1.   3 घंटे 30 िमनट
2.   4 घंटे
3.   7 घंटे
4.   8 घंटे 40 िमनट


Question Number : 54 Question Id : 9277597350 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A boat can cover a distance of 56 km downstream in 4 hours. If the speed of stream is 2 km/hr, then how much time will it take to cover the same
distance in upstream?
Options :
1.    4 hours 40 minutes
2.    5 hours 16 minutes
3.    6 hours
4.    5 hours 36 minutes


Question Number : 54 Question Id : 9277597350 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एक नाव धारा के अनुकूल 56 िक.मी. की एक दू री को तय करने म 4 घंटे लेती है । यिद धारा की गित 2 िक.मी./घंटा है , तो समान दू री को धारा के ितकूल तय
करने म यह िकतना समय लेगी?
Options :
1.   4 घंटे 40 िमनट
2.   5 घंटे 16 िमनट
3.   6 घंटे
4.   5 घंटे 36 िमनट
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Question Number : 55 Question Id : 9277597351 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Mohit alone can complete a work in 60 days. Rohit and Mohit together can complete the same work in 12 days. Rohit alone can complete the
same work in how many days?
Options :
1.   14 days
2.   15 days
3.   16 days
4.   18 days


Question Number : 55 Question Id : 9277597351 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
मोिहत अकेले एक काय को 60 िदन म पूरा कर सकता है । रोिहत तथा मोिहत िमलकर समान काय को 12 िदन म पूरा कर सकते ह। रोिहत अकेला समान काय
को िकतने िदन म पूरा कर सकता है ?
Options :
1.   14 िदन
2.   15 िदन
3.   16 िदन
4.   18 िदन


Question Number : 56 Question Id : 9277597352 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Y is 5 times as efficient as X. Z is 4 times as efficient as X. Y can complete a work in 144 days less than the days taken by X. In how many days
X, Y and Z together can complete the same work?
Options :
1.    12 days
2.    15 days
3.    18 days
4.    24 days
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Question Number : 56 Question Id : 9277597352 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Y, X का 5 गुना कायकुशल है । Z, X का 4 गुना कायकुशल है । Y एक काय को X ारा िलए गए िदन से 144 िदन कम म पूरा कर सकता है । X, Y तथा Z
समान काय को िकतने िदन म पूरा कर सकते ह?
Options :
1.    12 िदन
2.    15 िदन
3.    18 िदन
4.    24 िदन


Question Number : 57 Question Id : 9277597353 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the total surface area of a hemisphere of radius 14 cm?
Options :
1.    1232 cm2
2.    1748 cm2
3.    1848 cm2
4.    2464 cm2


Question Number : 57 Question Id : 9277597353 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
14 से.मी. ि    ा वाले एक अधगोले का कुल पृ ीय े फल   ा है ?
Options :
1.    1232 से.मी.2
2.    1748 से.मी.2
3.    1848 से.मी.2
4.    2464 से.मी.2
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Question Number : 58 Question Id : 9277597354 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :
1.   5620
2.   4780
3.   5910
4.   4580


Question Number : 58 Question Id : 9277597354 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 50 of 175
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Text of page 50
Options :
1.   5620
2.   4780
3.   5910
4.   4580


Question Number : 59 Question Id : 9277597355 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 51 of 175
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Text of page 51
Options :
1.   66.66 percent
2.   83.33 percent
3.   73.66 percent
4.   87.33 percent


Question Number : 59 Question Id : 9277597355 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 52 of 175
Page 52 of 175
Text of page 52
Options :
1.   66.66 ितशत
2.   83.33 ितशत
3.   73.66 ितशत
4.   87.33 ितशत


Question Number : 60 Question Id : 9277597356 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 53 of 175
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Text of page 53
Options :
1.   3
2.   2
3.   4
4.   5


Question Number : 60 Question Id : 9277597356 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 54 of 175
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Text of page 54
Options :
1.   3
2.   2
3.   4
4.   5



                                General English
Group Number :                             4
Group Id :                                 927759264
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 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 55 of 175
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General English
Section Id :                                                                     927759290
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 :                                                                 927759343
Question Shuffling Allowed :                                                     Yes

Question Number : 61 Question Id : 9277597357 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Find the part of the given sentence that has an error in it. If there is no error, choose ‘No error’.

A majority impetus was / rapid urbanization during / the Industrial Revolution. / No error
Options :
1.   A majority impetus was
2.   rapid urbanization during
3.   the Industrial Revolution.
4.   No error


Question Number : 61 Question Id : 9277597357 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Find the part of the given sentence that has an error in it. If there is no error, choose ‘No error’.

A majority impetus was / rapid urbanization during / the Industrial Revolution. / No error
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 56 of 175
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Text of page 56
Options :
1.   A majority impetus was
2.   rapid urbanization during
3.   the Industrial Revolution.
4.   No error


Question Number : 62 Question Id : 9277597358 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Find the part of the given sentence that has an error in it. If there is no error, choose ‘No error’.

Sometimes anger /can motivate us /to work hardest. / No error
Options :
1.   Sometimes anger
2.   can motivate us
3.   to work hardest.
4.   No error


Question Number : 62 Question Id : 9277597358 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Find the part of the given sentence that has an error in it. If there is no error, choose ‘No error’.

Sometimes anger /can motivate us /to work hardest. / No error
Options :
1.   Sometimes anger
2.   can motivate us
3.   to work hardest.
4.   No error


Question Number : 63 Question Id : 9277597359 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 57 of 175
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Select the most appropriate option to substitute the underlined segment in the given sentence. If no substitution is required, select ‘No
improvement’ as your answer.

They had already plan to leave.
Options :
1.   has already planned
2.   have already plan
3.   had already planned
4.   No improvement


Question Number : 63 Question Id : 9277597359 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the most appropriate option to substitute the underlined segment in the given sentence. If no substitution is required, select ‘No
improvement’ as your answer.

They had already plan to leave.
Options :
1.   has already planned
2.   have already plan
3.   had already planned
4.   No improvement


Question Number : 64 Question Id : 9277597360 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the most appropriate option to substitute the underlined segment in the given sentence. If no substitution is required, select ‘No
improvement’ as your answer.

He have been missing since he left the house.
Options :
1.   have been missing for
2.   has been missed for
3.   had been missing since
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 58 of 175
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Text of page 58
4.   No improvement


Question Number : 64 Question Id : 9277597360 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Select the most appropriate option to substitute the underlined segment in the given sentence. If no substitution is required, select ‘No
improvement’ as your answer.

He have been missing since he left the house.
Options :
1.   have been missing for
2.   has been missed for
3.   had been missing since
4.   No improvement


Question Number : 65 Question Id : 9277597361 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A sentence has been given with a blank to be filled with an appropriate word/words. Choose the correct alternative.

Higher education ______ excludes many women.
Options :
1.   still
2.   till
3.   until
4.   up till


Question Number : 65 Question Id : 9277597361 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A sentence has been given with a blank to be filled with an appropriate word/words. Choose the correct alternative.

Higher education ______ excludes many women.
Options :
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 59 of 175
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1.   still
2.   till
3.   until
4.   up till


Question Number : 66 Question Id : 9277597362 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A sentence has been given with a blank to be filled with an appropriate word. Choose the correct alternative.

______ what you have, be grateful for what’s gone and stay motivated.
Options :
1.   Surly
2.   Cherish
3.   Play
4.   Slay


Question Number : 66 Question Id : 9277597362 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A sentence has been given with a blank to be filled with an appropriate word. Choose the correct alternative.

______ what you have, be grateful for what’s gone and stay motivated.
Options :
1.   Surly
2.   Cherish
3.   Play
4.   Slay


Question Number : 67 Question Id : 9277597363 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 60 of 175
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coherent paragraph.

P: There are various kinds of avalanches, including rock avalanches, snow avalanches, and debris avalanches.
Q: Snow avalanches constitute a relatively common phenomenon in many mountainous areas.
R: An avalanche is typically triggered when materials on a slope break loose from its surroundings; this material then quickly collects and carries
additional material down the slope.
S: Avalanche is a mass of material moving rapidly down a slope.
Options :
1.   SRPQ
2.   PQRS
3.   SRQP
4.   QRPS


Question Number : 67 Question Id : 9277597363 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a
coherent paragraph.

P: There are various kinds of avalanches, including rock avalanches, snow avalanches, and debris avalanches.
Q: Snow avalanches constitute a relatively common phenomenon in many mountainous areas.
R: An avalanche is typically triggered when materials on a slope break loose from its surroundings; this material then quickly collects and carries
additional material down the slope.
S: Avalanche is a mass of material moving rapidly down a slope.
Options :
1.    SRPQ
2.    PQRS
3.    SRQP
4.    QRPS


Question Number : 68 Question Id : 9277597364 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a
coherent paragraph.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 61 of 175
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P: Other means of transmission include blood transfusion, placental transmission, or consumption of contaminated food.
Q: The protozoan Trypanosoma cruzi, the cause of Chagas disease, was limited historically to rural Latin America.
R: But increased migration of infected people has facilitated the spread of the disease.
S: Chagas disease is transmitted mainly by bloodsucking “kissing bugs,” but various domestic and wild animals, including cats, dogs, guinea
pigs, raccoons, skunks, and armadillos, participate in the transmission cycle.
Options :
1.     RPQS
2.     SRQP
3.     SRPQ
4.     QRSP


Question Number : 68 Question Id : 9277597364 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a
coherent paragraph.

P: Other means of transmission include blood transfusion, placental transmission, or consumption of contaminated food.
Q: The protozoan Trypanosoma cruzi, the cause of Chagas disease, was limited historically to rural Latin America.
R: But increased migration of infected people has facilitated the spread of the disease.
S: Chagas disease is transmitted mainly by bloodsucking “kissing bugs,” but various domestic and wild animals, including cats, dogs, guinea
pigs, raccoons, skunks, and armadillos, participate in the transmission cycle.
Options :
1.    RPQS
2.    SRQP
3.    SRPQ
4.    QRSP


Question Number : 69 Question Id : 9277597365 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Choose the word that means the same as the given word.

Ally
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 62 of 175
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Options :
1.   Sufferer
2.   Supporter
3.   Amateur
4.   Soldier


Question Number : 69 Question Id : 9277597365 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Choose the word that means the same as the given word.

Ally
Options :
1.   Sufferer
2.   Supporter
3.   Amateur
4.   Soldier


Question Number : 70 Question Id : 9277597366 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Choose the word that is opposite in meaning to the given word.

Destitute
Options :
1.    Opulent
2.    Skillful
3.    Meek
4.    Servile


Question Number : 70 Question Id : 9277597366 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 63 of 175
Page 63 of 175
Text of page 63
Choose the word that is opposite in meaning to the given word.

Destitute
Options :
1.   Opulent
2.   Skillful
3.   Meek
4.   Servile


Question Number : 71 Question Id : 9277597367 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the given question, four words are given out of which one word is correctly spelt. Choose the CORRECTLY spelt word.
Options :
1.    Geometry
2.    Giometry
3.    Geomatry
4.    Geomeitry


Question Number : 71 Question Id : 9277597367 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the given question, four words are given out of which one word is correctly spelt. Choose the CORRECTLY spelt word.
Options :
1.    Geometry
2.    Giometry
3.    Geomatry
4.    Geomeitry


Question Number : 72 Question Id : 9277597368 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 64 of 175
Page 64 of 175
Text of page 64
In the given question, four words are given out of which one word is correctly spelt. Choose the CORRECTLY spelt word.
Options :
1.    Playrite
2.    Playwright
3.   Playright
4.   Playwrite


Question Number : 72 Question Id : 9277597368 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the given question, four words are given out of which one word is correctly spelt. Choose the CORRECTLY spelt word.
Options :
1.    Playrite
2.    Playwright
3.    Playright
4.    Playwrite


Question Number : 73 Question Id : 9277597369 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

To die in harness
Options :
1.   To die while still working
2.   To die in an event
3.   A natural death
4.   To die in an epidemic


Question Number : 73 Question Id : 9277597369 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 65 of 175
Page 65 of 175
Text of page 65
In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

To die in harness
Options :
1.   To die while still working
2.   To die in an event
3.   A natural death
4.   To die in an epidemic


Question Number : 74 Question Id : 9277597370 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

To fall on one’s feet
Options :
1.    To get hurt badly
2.    To be sabotaged by a close friend
3.    To be fortunate
4.    To show disappointment


Question Number : 74 Question Id : 9277597370 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

To fall on one’s feet
Options :
1.    To get hurt badly
2.    To be sabotaged by a close friend
3.    To be fortunate
4.    To show disappointment
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 66 of 175
Page 66 of 175
Text of page 66
Question Number : 75 Question Id : 9277597371 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Choose the word that can substitute the given sentence.

A handwritten paper
Options :
1.   Manuscript
2.   Diary
3.   Thesis
4.   Handcraft


Question Number : 75 Question Id : 9277597371 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Choose the word that can substitute the given sentence.

A handwritten paper
Options :
1.   Manuscript
2.   Diary
3.   Thesis
4.   Handcraft
Sub-Section Number :                                                              2
Sub-Section Id :                                                                  927759344
Question Shuffling Allowed :                                                      Yes

Question Id : 9277597372 Question Type : COMPREHENSION Sub Question Shuffling Allowed : Yes Group Comprehension Questions
: No
Question Numbers : (76 to 80)
Read the following passage carefully and answer the given questions.

Steel has a high strength-to-weight ratio and is relatively cheap to produce. There are qualities that make the material invaluable in construction
and the car industry. As a major component of wind turbines, steel will be a big part of the transition to green energy too.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 67 of 175
Page 67 of 175
Text of page 67
That’s partially why the global demand for steel is forecast to increase by more than a third by 2050. This could be bad news for the planet,
though, as steel manufacturing already accounts for 7% of CO2 emissions worldwide. Thus, the world needs to find a way to make lots of steel
while reducing the industry’s carbon footprint.
To produce steel, iron ore is mined, processed and then alloyed with carbon and other elements. Coking coal, a form of coal with high carbon
content, plays three different roles in this process. It can help turn iron ore into iron, process iron into steel, and it’s also a fuel that can help
power these processes.
In integrated steelworks, coking coal is heated to around 1,100°C to produce a pure form of carbon called coke. Coke reduces the ore to iron in a
blast furnace by reacting with oxygen to make carbon monoxide. One molecule of iron ore reacts with three molecules of carbon monoxide,
leaving two iron atoms and three molecules of carbon dioxide. The greenhouse gas is then released into the atmosphere as waste.
Finally, iron is converted to steel by altering its carbon content in a basic oxygen furnace. Globally, 90% of the steel produced from iron ore is
manufactured using this process.
A carbon-neutral steel industry could substitute coal in each step of this process. But at the moment, coal remains the most cost-effective option
in most cases.
Direct electrolysis, where iron ore is turned directly into steel using electricity, also has potential, but it’s a long way from being commercially
viable. With time running short, the surest route to meet deadline for decarbonisation is to use the direct reduction method with hydrogen in
electric arc furnaces, or use coal in integrated steelworks with carbon capture and storage. Globally, both are likely to play a role.
Sub questions

Question Number : 76 Question Id : 9277597373 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The passage mainly talks about:
Options :
1.   Plans to restrain industries affecting the natural environment.
2.   How to scrub out the industry’s emissions when producing steel.
3.   Inefficiency of many industries in producing coal free steel.
4.   Methods and alternatives available in the market for stainless steel.

Question Number : 77 Question Id : 9277597374 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
According to the author, the global demand for steel is forecast to increase by:
Options :
1.   More than 90% in five years
2.   More than five by 2035
3.   More than third by 2050
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 68 of 175
Page 68 of 175
Text of page 68
4.   More than 7% in coming years

Question Number : 78 Question Id : 9277597375 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following statements can be inferred from the given passage?
Options :
1.   Other than carbon neutral industry, no industry can substitute coal.
2.   Continued coal use must be met with radical improvements in carbon capture.
3.   Coal will continue to be used for making steel in the 2030s and beyond.
4.   No greenhouse gas is released when using iron ore to produce steel.

Question Number : 79 Question Id : 9277597376 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 processes is NOT involved when producing steel?
Options :
1.   Trapping carbon dioxide for further process.
2.   Mining of iron ore.
3.   Alteration of carbon content of iron in a basic oxygen furnace.
4.   Iron is alloyed with carbon.

Question Number : 80 Question Id : 9277597377 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the SYNONYM of the word-‘viable’ as used in the passage?
Options :
1.   Impossible
2.   Incredible
3.   Dubious
4.   Conceivable
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 69 of 175
Page 69 of 175
Text of page 69
Question Id : 9277597372 Question Type : COMPREHENSION Sub Question Shuffling Allowed : Yes Group Comprehension Questions
: No
Question Numbers : (76 to 80)
Read the following passage carefully and answer the given questions.

Steel has a high strength-to-weight ratio and is relatively cheap to produce. There are qualities that make the material invaluable in construction
and the car industry. As a major component of wind turbines, steel will be a big part of the transition to green energy too.
That’s partially why the global demand for steel is forecast to increase by more than a third by 2050. This could be bad news for the planet,
though, as steel manufacturing already accounts for 7% of CO2 emissions worldwide. Thus, the world needs to find a way to make lots of steel
while reducing the industry’s carbon footprint.
To produce steel, iron ore is mined, processed and then alloyed with carbon and other elements. Coking coal, a form of coal with high carbon
content, plays three different roles in this process. It can help turn iron ore into iron, process iron into steel, and it’s also a fuel that can help
power these processes.
In integrated steelworks, coking coal is heated to around 1,100°C to produce a pure form of carbon called coke. Coke reduces the ore to iron in a
blast furnace by reacting with oxygen to make carbon monoxide. One molecule of iron ore reacts with three molecules of carbon monoxide,
leaving two iron atoms and three molecules of carbon dioxide. The greenhouse gas is then released into the atmosphere as waste.
Finally, iron is converted to steel by altering its carbon content in a basic oxygen furnace. Globally, 90% of the steel produced from iron ore is
manufactured using this process.
A carbon-neutral steel industry could substitute coal in each step of this process. But at the moment, coal remains the most cost-effective option
in most cases.
Direct electrolysis, where iron ore is turned directly into steel using electricity, also has potential, but it’s a long way from being commercially
viable. With time running short, the surest route to meet deadline for decarbonisation is to use the direct reduction method with hydrogen in
electric arc furnaces, or use coal in integrated steelworks with carbon capture and storage. Globally, both are likely to play a role.
Sub questions

Question Number : 76 Question Id : 9277597373 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The passage mainly talks about:
Options :
1.   Plans to restrain industries affecting the natural environment.
2.   How to scrub out the industry’s emissions when producing steel.
3.   Inefficiency of many industries in producing coal free steel.
4.   Methods and alternatives available in the market for stainless steel.

Question Number : 77 Question Id : 9277597374 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 70 of 175
Page 70 of 175
Text of page 70
Correct Marks : 1 Wrong Marks : 0.25
According to the author, the global demand for steel is forecast to increase by:
Options :
1.   More than 90% in five years
2.   More than five by 2035
3.   More than third by 2050
4.   More than 7% in coming years

Question Number : 78 Question Id : 9277597375 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following statements can be inferred from the given passage?
Options :
1.   Other than carbon neutral industry, no industry can substitute coal.
2.   Continued coal use must be met with radical improvements in carbon capture.
3.   Coal will continue to be used for making steel in the 2030s and beyond.
4.   No greenhouse gas is released when using iron ore to produce steel.

Question Number : 79 Question Id : 9277597376 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 processes is NOT involved when producing steel?
Options :
1.   Trapping carbon dioxide for further process.
2.   Mining of iron ore.
3.   Alteration of carbon content of iron in a basic oxygen furnace.
4.   Iron is alloyed with carbon.

Question Number : 80 Question Id : 9277597377 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the SYNONYM of the word-‘viable’ as used in the passage?
Options :
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 71 of 175
Page 71 of 175
Text of page 71
1.   Impossible
2.   Incredible
3.   Dubious
4.   Conceivable



                                                      General Hindi
Group Number :                                                        5
Group Id :                                                            927759265
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 :                                                          927759291
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 :                                                      927759345
Question Shuffling Allowed :                                          Yes

Question Number : 81 Question Id : 9277597378 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 72 of 175
Page 72 of 175
Text of page 72
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िदए गए श      के सही संिध िव े द का चयन कीिजए।

दयोिम
Options :
1.   दया+ऊिम
2.   दया+उिम
3.   दया:+उिम
4.       ा+अयोरमी


Question Number : 81 Question Id : 9277597378 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िदए गए श      के सही संिध िव े द का चयन कीिजए।

दयोिम
Options :
1.   दया+ऊिम
2.   दया+उिम
3.   दया:+उिम
4.       ा+अयोरमी


Question Number : 82 Question Id : 9277597379 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 “मृगनयन” का सही समास कौन सा है ?
Options :
1.   ि गु समास
2.   कमधारय समास
3.    ं समास
4.   ब      ीिह समास
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 73 of 175
Page 73 of 175
Text of page 73
Question Number : 82 Question Id : 9277597379 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 “मृगनयन” का सही समास कौन सा है ?
Options :
1.   ि गु समास
2.   कमधारय समास
3.    ं समास
4.   ब   ीिह समास


Question Number : 83 Question Id : 9277597380 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 श   दे शज है ?
Options :
1.   मुगल
2.   गमला
3.   गोदाम
4.   लोटा


Question Number : 83 Question Id : 9277597380 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 श   दे शज है ?
Options :
1.   मुगल
2.   गमला
3.   गोदाम
4.   लोटा
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 74 of 175
Page 74 of 175
Text of page 74
Question Number : 84 Question Id : 9277597381 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
वा   म र      थान की पूित कर।

सं ृ ित वह गुण है , िजससे मनु   अपनी भीतरी ______ कर सकता है ।
Options :
1.   िवकास
2.   उ ित
3.   अवनित
4.   वृ


Question Number : 84 Question Id : 9277597381 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
वा   म र      थान की पूित कर।

सं ृ ित वह गुण है , िजससे मनु   अपनी भीतरी ______ कर सकता है ।
Options :
1.   िवकास
2.   उ ित
3.   अवनित
4.   वृ


Question Number : 85 Question Id : 9277597382 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िदए गए श     का िवलोम श         ात कीिजए।

अनेक
Options :
1.   ब त
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 75 of 175
Page 75 of 175
Text of page 75
2.   एक
3.   कुछ
4.   कोई एक


Question Number : 85 Question Id : 9277597382 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िदए गए श    का िवलोम श    ात कीिजए।

अनेक
Options :
1.   ब त
2.   एक
3.   कुछ
4.   कोई एक


Question Number : 86 Question Id : 9277597383 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िदए गए श    का पयायवाची ात कीिजए।

उ ि
Options :
1.   सृि
2.   उ ात
3.   उ ित
4.   उ ान


Question Number : 86 Question Id : 9277597383 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िदए गए श    का पयायवाची ात कीिजए।
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 76 of 175
Page 76 of 175
Text of page 76
उ ि
Options :
1.   सृि
2.   उ ात
3.   उ ित
4.   उ ान


Question Number : 87 Question Id : 9277597384 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत श     ों म से शु   वतनी का चयन कीिजए।
Options :
1.   अनु हीत
2.   ि तये
3.    तीक
4.   संस रक


Question Number : 87 Question Id : 9277597384 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत श     ों म से शु   वतनी का चयन कीिजए।
Options :
1.   अनु हीत
2.   ि तये
3.    तीक
4.   संस रक


Question Number : 88 Question Id : 9277597385 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 77 of 175
Page 77 of 175
Text of page 77
िन िल खत वा   ों म से सरल वा      का चयन कीिजये।
Options :
1.   सीता ने आज खाना बनाते ए पढ़ाई की।
2.   सीता ने आज खाना बनाया और पढ़ाई की।
3.   सीता ने खाना बनाया और साथ ही पढ़ाई भी की।
4.   सीता ने खाना भी बनाया और पढ़ाई भी की।


Question Number : 88 Question Id : 9277597385 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत वा   ों म से सरल वा      का चयन कीिजये।
Options :
1.   सीता ने आज खाना बनाते ए पढ़ाई की।
2.   सीता ने आज खाना बनाया और पढ़ाई की।
3.   सीता ने खाना बनाया और साथ ही पढ़ाई भी की।
4.   सीता ने खाना भी बनाया और पढ़ाई भी की।


Question Number : 89 Question Id : 9277597386 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत वा   ों म से संयु   वा    का चयन कीिजये।
Options :
1.   यिद वह परी ा म समय पर प ँ चता तो आज पास होता।
2.   वह परी ा म समय पर प ँ चता तो ही पास होता।
3.   वह परी ा म समय पर प ँ चता तो पास हो जाता।
4.   जो वह परी ा म समय पर प ँ चता तो पास हो जाता।


Question Number : 89 Question Id : 9277597386 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत वा   ों म से संयु   वा    का चयन कीिजये।
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 78 of 175
Page 78 of 175
Text of page 78
Options :
1.   यिद वह परी ा म समय पर प ँ चता तो आज पास होता।
2.   वह परी ा म समय पर प ँ चता तो ही पास होता।
3.   वह परी ा म समय पर प ँ चता तो पास हो जाता।
4.   जो वह परी ा म समय पर प ँ चता तो पास हो जाता।


Question Number : 90 Question Id : 9277597387 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    ीिलंग ात कीिजए।
Options :
1.   यािचका
2.   िहरन
3.   रीछ
4.   वनवासी


Question Number : 90 Question Id : 9277597387 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    ीिलंग ात कीिजए।
Options :
1.   यािचका
2.   िहरन
3.   रीछ
4.   वनवासी


Question Number : 91 Question Id : 9277597388 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत वा     म काल इं िगत कीिजये।
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 79 of 175
Page 79 of 175
Text of page 79
वह अनेक कार की िव ा सीख चुकी है ।
Options :
1.   आस भूत
2.   संिद   भूत
3.   अपूण भूत
4.   संभा   वतमान


Question Number : 91 Question Id : 9277597388 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत वा       म काल इं िगत कीिजये।

वह अनेक कार की िव ा सीख चुकी है ।
Options :
1.   आस भूत
2.   संिद   भूत
3.   अपूण भूत
4.   संभा   वतमान


Question Number : 92 Question Id : 9277597389 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िदए गए वा     के िलए उपयु    िवराम िच ों का चयन कीिजए।

पि म नया धम चाहता है पूरब नया ान
Options :
1.   !,
2.   ,।
3.   ‘’ !
4.   ,?
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 80 of 175
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Text of page 80
Question Number : 92 Question Id : 9277597389 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िदए गए वा   के िलए उपयु   िवराम िच ों का चयन कीिजए।

पि म नया धम चाहता है पूरब नया ान
Options :
1.   !,
2.   ,।
3.   ‘’ !
4.   ,?


Question Number : 93 Question Id : 9277597390 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत     म, िदए गए चार िवक     ों म से, उस िवक   का चयन कर जो िदए गए मुहावरे के अथ को सव े   प से   करता है ।

अ े पर चहकना
Options :
1.   अपने घर पर रौब िदखाना
2.   अ े पर चमकना
3.   अपने घर म शेर बनना
4.   अपने काम िनकलवाना


Question Number : 93 Question Id : 9277597390 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत     म, िदए गए चार िवक     ों म से, उस िवक   का चयन कर जो िदए गए मुहावरे के अथ को सव े   प से   करता है ।

अ े पर चहकना
Options :
1.   अपने घर पर रौब िदखाना
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 81 of 175
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2.   अ े पर चमकना
3.   अपने घर म शेर बनना
4.   अपने काम िनकलवाना


Question Number : 94 Question Id : 9277597391 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत      म, िदए गए चार िवक   ों म से, उस िवक   का चयन कर जो िदए गए मुहावरे के अथ को सव े   प से   करता है ।

िकरिकरा हो जाना
Options :
1.   मुहँ कीर िकरा हो जाना
2.   िव पड़ना
3.   काम ठीक होना
4.   काम होते होते िबगड़ जाना


Question Number : 94 Question Id : 9277597391 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत      म, िदए गए चार िवक   ों म से, उस िवक   का चयन कर जो िदए गए मुहावरे के अथ को सव े   प से   करता है ।

िकरिकरा हो जाना
Options :
1.   मुहँ कीर िकरा हो जाना
2.   िव पड़ना
3.   काम ठीक होना
4.   काम होते होते िबगड़ जाना


Question Number : 95 Question Id : 9277597392 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत      म, िदए गए चार िवक   ों म से, उस िवक   का चयन कर जो िदए गए मुहावरे के अथ को सव े   प से   करता है ।
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 82 of 175
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जैसी चले बयार, तब तैसी दीजे ओट
Options :
1.   जैसा दे श हो, वैसा भेस हो
2.   समय और प र थित के अनुसार काम करना चािहए
3.   जहाँ रहना हो वहीं की रितयों का आचरण करना
4.   जब मन चाहा काम िकया, जब मन िकया काम न करना


Question Number : 95 Question Id : 9277597392 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िन िल खत      म, िदए गए चार िवक   ों म से, उस िवक   का चयन कर जो िदए गए मुहावरे के अथ को सव े   प से   करता है ।

जैसी चले बयार, तब तैसी दीजे ओट
Options :
1.   जैसा दे श हो, वैसा भेस हो
2.   समय और प र थित के अनुसार काम करना चािहए
3.   जहाँ रहना हो वहीं की रितयों का आचरण करना
4.   जब मन चाहा काम िकया, जब मन िकया काम न करना
Sub-Section Number :                                                      2
Sub-Section Id :                                                          927759346
Question Shuffling Allowed :                                              Yes

Question Id : 9277597393 Question Type : COMPREHENSION Sub Question Shuffling Allowed : Yes Group Comprehension Questions
: No
Question Numbers : (96 to 100)
ग ां श को   ानपूवक पढ़ और िदए गए     ों का सही उ तर द।

बेहतर िश ा सभी के िलए जीवन म आगे बढ़ने और सफलता ा करने के िलए ब त आव क है । यह हमम आ िव ास िवकिसत करने के साथ ही हमारे
        िनमाण म भी सहायता करती है । ू ली िश ा सभी के जीवन म महान भूिमका िनभाती है । पूरे िश ा तं को ाथिमक िश ा, मा िमक िश ा और
उ मा िमक िश ा जैसे को तीन भागों म बाँ टा गया है । िश ा के सभी र अपना एक िवशेष मह और थान रखते ह। हम सभी अपने ब ों को सफलता
की ओर जाते ए दे खना चाहते ह, जो केवल अ ी और उिचत िश ा के मा म से ही संभव है ।
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 83 of 175
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जीवन म सफलता ा करने और कुछ अलग करने के िलए िश ा सभी के िलए एक ब त मह पूण साधन है । यह हम जीवन के किठन समय म चुनौितयों से
सामना करने म सहायता करता है ।
पूरी िश ण ि या के दौरान ा िकया गया ान हम सभी और             ेक   को अपने जीवन के ित आ िनभर बनाता है । यह जीवन म बेहतर संभावनाओं
को ा करने के अवसरों के िलए िविभ दरवाजे खोलती है िजससे कै रयर के िवकास को बढ़ावा िमले।
  ामीण े म िश ा के मह को बढ़ावा दे ने के िलए सरकार ारा ब त से जाग कता अिभयान चलाए जा रहे ह। यह समाज म सभी        यों म समानता की
भावना लाती है और दे श के िवकास और वृ को भी बढ़ावा दे ती है ।
Sub questions

Question Number : 96 Question Id : 9277597394 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
बेहतर िश ा सभी के िलए       ों ज़ री है ?
Options :
1.   जीवन म आगे बढ़ने के िलये
2.   िन    ल होने के िलये
3.   समाज म नाम के िलये
4.   खुद को बड़ा दे खने के िलये

Question Number : 97 Question Id : 9277597395 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
इस ग ां श के सही शीषक का चयन कीिजये।
Options :
1.   िश ा का मह
2.   िश ा ओर मानव
3.   िश ा और हम
4.   ज री िश ा

Question Number : 98 Question Id : 9277597396 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िश ा तं को िकतने भागों म बाँ टा गया है ?
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 84 of 175
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Text of page 84
Options :
1.   4
2.   3
3.   5
4.   6

Question Number : 99 Question Id : 9277597397 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िश ा िकसमे हमारी सहायता करती है ?
Options :
1.   लड़ने म
2.   शां त रहने म
3.   चुनौितयों से सामना करने म
4.   समाज का सामना करने म

Question Number : 100 Question Id : 9277597398 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िश ण ि या के दौरान ा , ान!          ेक      को    ा बनाता है ?
Options :
1.   गैर िज ेदार
2.   आ िनभर
3.   श      वान
4.   धनवान


Question Id : 9277597393 Question Type : COMPREHENSION Sub Question Shuffling Allowed : Yes Group Comprehension Questions
: No
Question Numbers : (96 to 100)
ग ां श को    ानपूवक पढ़ और िदए गए     ों का सही उ तर द।

बेहतर िश ा सभी के िलए जीवन म आगे बढ़ने और सफलता ा          करने के िलए ब त आव   क है । यह हमम आ िव ास िवकिसत करने के साथ ही हमारे
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 85 of 175
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Text of page 85
िनमाण म भी सहायता करती है । ू ली िश ा सभी के जीवन म महान भूिमका िनभाती है । पूरे िश ा तं को ाथिमक िश ा, मा िमक िश ा और
उ मा िमक िश ा जैसे को तीन भागों म बाँ टा गया है । िश ा के सभी र अपना एक िवशेष मह और थान रखते ह। हम सभी अपने ब ों को सफलता
की ओर जाते ए दे खना चाहते ह, जो केवल अ ी और उिचत िश ा के मा म से ही संभव है ।
जीवन म सफलता ा करने और कुछ अलग करने के िलए िश ा सभी के िलए एक ब त मह पूण साधन है । यह हम जीवन के किठन समय म चुनौितयों से
सामना करने म सहायता करता है ।
पूरी िश ण ि या के दौरान ा िकया गया ान हम सभी और             ेक   को अपने जीवन के ित आ िनभर बनाता है । यह जीवन म बेहतर संभावनाओं
को ा करने के अवसरों के िलए िविभ दरवाजे खोलती है िजससे कै रयर के िवकास को बढ़ावा िमले।
  ामीण े म िश ा के मह को बढ़ावा दे ने के िलए सरकार ारा ब त से जाग कता अिभयान चलाए जा रहे ह। यह समाज म सभी            यों म समानता की
भावना लाती है और दे श के िवकास और वृ को भी बढ़ावा दे ती है ।
Sub questions

Question Number : 96 Question Id : 9277597394 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
बेहतर िश ा सभी के िलए      ों ज़ री है ?
Options :
1.   जीवन म आगे बढ़ने के िलये
2.   िन   ल होने के िलये
3.   समाज म नाम के िलये
4.   खुद को बड़ा दे खने के िलये

Question Number : 97 Question Id : 9277597395 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
इस ग ां श के सही शीषक का चयन कीिजये।
Options :
1.   िश ा का मह
2.   िश ा ओर मानव
3.   िश ा और हम
4.   ज री िश ा

Question Number : 98 Question Id : 9277597396 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 86 of 175
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Text of page 86
Correct Marks : 1 Wrong Marks : 0.25
िश ा तं को िकतने भागों म बाँ टा गया है ?
Options :
1.   4
2.   3
3.   5
4.   6

Question Number : 99 Question Id : 9277597397 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िश ा िकसमे हमारी सहायता करती है ?
Options :
1.   लड़ने म
2.   शां त रहने म
3.   चुनौितयों से सामना करने म
4.   समाज का सामना करने म

Question Number : 100 Question Id : 9277597398 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िश ण ि या के दौरान ा , ान!            ेक   को   ा बनाता है ?
Options :
1.   गैर िज ेदार
2.   आ िनभर
3.   श     वान
4.   धनवान



                                                               Discipline1
Group Number :                                                           6
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 87 of 175
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Text of page 87
Group Id :                                                            927759266
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 :                                                          927759292
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 :                                                      927759347
Question Shuffling Allowed :                                          Yes

Question Number : 101 Question Id : 9277597399 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :

1.


2.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 88 of 175
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Text of page 88
3.


4.



Question Number : 101 Question Id : 9277597399 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :

1.


2.


3.


4.



Question Number : 102 Question Id : 9277597400 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
When two bodies collide, there is no loss of kinetic energy. What is the coefficient of restitution for this collision?
Options :
1.   e=0
2.   e=1
3.   e = 0.5
4.   0<e<1
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 89 of 175
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Question Number : 102 Question Id : 9277597400 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
जब दो िपंडों की ट   र होती है , तो गितज ऊजा की कोई हािन नहीं होती है । इस ट   र के िलए   व थान गुणां क   ा है ?
Options :
1.   e=0
2.   e=1
3.   e = 0.5
4.   0<e<1


Question Number : 103 Question Id : 9277597401 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A linear operator is said is the unitary operator if _________.
Options :

1.


2.


3.


4.



Question Number : 103 Question Id : 9277597401 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद ______, तो रै खक संचालक को एका क संचालक कहा जाता है ।
Options :

1.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 90 of 175
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2.


3.


4.



Question Number : 104 Question Id : 9277597402 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Electric field is conservative when _________.
Options :
1.    curl of electric field is equal to electric potential
2.    divergence of electric field is zero
3.    curl of electric field is zero
4.    divergence of electric field is equal to electric potential


Question Number : 104 Question Id : 9277597402 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
जब ______, तो िवद् युत े अप रवतनवादी होता है ।
Options :
1.   िवद् युत े का व   िवद् युत िवभव के बराबर होता है
2.   िवद् युत े का िवचलन शू    होता है
3.   िवद् युत े का व   शू   होता है
4.   िवद् युत े का िवचलन िवद् युत िवभव के बराबर होता है


Question Number : 105 Question Id : 9277597403 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 91 of 175
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The electric field inside the sphere of radius R having volume charge density ρ = ar ÷ 2 is ____________.
Options :
1.

2.

3.

4.



Question Number : 105 Question Id : 9277597403 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
आयतन आवेश घन        ρ = ar ÷ 2 वाले ि   ा R के गोले के अंदर िवद् युत े ______ होता है ।
Options :

1.


2.


3.


4.



Question Number : 106 Question Id : 9277597404 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Ensemble in which elements can exchange energy but not the particle is__________.
Options :
1.   Microcanonical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 92 of 175
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2.   Canonical
3.   Grand canonical
4.   Grand canonical and Canonical.


Question Number : 106 Question Id : 9277597404 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
ऐसा समूह िजसम त     ऊजा का आदान- दान कर सकते ह लेिकन कण नहीं, वह ______ होता है ।
Options :
1.   सू   िविहत (microcanonical)
2.   िविहत (canonical)
3.   वृहद् िविहत (grand canonical)
4.   वृहद् िविहत (grand canonical) और िविहत (canonical)


Question Number : 107 Question Id : 9277597405 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The total angular momentum of spectral term 3d is _____________.
Options :
1.   3,1,0
2.   4,3,2
3.   2,-1,0
4.   3,2,1


Question Number : 107 Question Id : 9277597405 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
वण मीय (spectral) पद 3d का कुल कोणीय संवेग ______ है ।
Options :
1.   3,1,0
2.   4,3,2
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 93 of 175
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3.   2,-1,0
4.   3,2,1


Question Number : 108 Question Id : 9277597406 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 band gap (in eV) of Si at 300 k?
Options :
1.   0.17
2.   1.11
3.   2.29
4.   1.37


Question Number : 108 Question Id : 9277597406 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
300 k पर Si के बड अंतराल (eV म) का मान िकतना होता है ?
Options :
1.   0.17
2.   1.11
3.   2.29
4.   1.37


Question Number : 109 Question Id : 9277597407 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The doping in the base of transistor is _________.
Options :
1.   light
2.   heavy
3.   moderate
4.   very heavy
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 94 of 175
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Question Number : 109 Question Id : 9277597407 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 ितरोधां त र (transistor) के आधार म रोगन (doping) ______ होता है ।
Options :
1.   ह      ा
2.   भारी
3.   म म
4.   ब त भारी


Question Number : 110 Question Id : 9277597408 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :

1.


2.


3.


4.



Question Number : 110 Question Id : 9277597408 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 95 of 175
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Text of page 95
1.


2.


3.


4.



Question Number : 111 Question Id : 9277597409 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following property is INCORRECT about nuclear forces?
Options :
1.   charge independent
2.   spin dependent
3.   weakest force in nature
4.   short range force


Question Number : 111 Question Id : 9277597409 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
परमाणु बलों के बारे म िन िल खत म से कौन सा गुणधम अस   है ?
Options :
1.   आवेश अनाि त
2.    च ण आि त
3.    कृित म सबसे भावहीन बल
4.   लघुपरासी बल


Question Number : 112 Question Id : 9277597410 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 96 of 175
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Text of page 96
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following is NOT an example of Total Internal Reflection?
Options :
1.   Shining of the crack in a glass vessel
2.   twinkling of star
3.   sparkling of diamond
4.   formation of mirage


Question Number : 112 Question Id : 9277597410 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 पूण आं त रक परावतन का उदाहरण नही ं है ?
Options :
1.   कां च के बतन म दरार का चमकना
2.   तारे का िटमिटमाना
3.   हीरे का चमकना
4.   मृगतृ   ा का िनमाण


Question Number : 113 Question Id : 9277597411 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The microscope used for imaging the surface at the atomic level is _________.
Options :
1.   SEM
2.   STM
3.   TEM
4.   AFM


Question Number : 113 Question Id : 9277597411 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 97 of 175
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परमाणु र पर सतह के ितिबंबन (imaging) के िलए यु         सू   दश ______ है ।
Options :
1.   SEM
2.   STM
3.   TEM
4.   AFM


Question Number : 114 Question Id : 9277597412 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
When all the dimensions are in nano range, then it is called as __________.
Options :
1.   Quantum well
2.   Quantum dot
3.   quantum wire
4.   micromaterial


Question Number : 114 Question Id : 9277597412 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
जब सभी िवमाएँ नैनो परास म होती ह, तो इसे ______ कहा जाता है ।
Options :
1.     ां टम वेल
2.     ां टम डॉट
3.     ां टम वायर
4.   माइ ोमटे रयल


Question Number : 115 Question Id : 9277597413 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The dimension of the nanomaterials are between __________.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 98 of 175
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Text of page 98
Options :
1.   1 to 100 µm
2.   1 to 100 nm
3.   1 to 100 mm
4.   1 to 100 Å


Question Number : 115 Question Id : 9277597413 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
नैनोमैटे रय   की िवमा ________ के बीच होती है ।
Options :
1.    1 से 100 µm
2.    1 से 100 nm
3.    1 से 100 mm
4.    1 से 100 Å


Question Number : 116 Question Id : 9277597414 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Full form of LASER is ___________.
Options :
1.    Light Amplification by Stimulated Emission of Radiations
2.    Light Absorption and Stimulated Emission of Radiations
3.    Light Amplification by Spontaneous Emission of Radiations
4.    Light Absorption by Spontaneous Emission of Radiations


Question Number : 116 Question Id : 9277597414 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
लेजर का पूण         प _________ है ।
Options :
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 99 of 175
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1.   लाइट ए     ीिफकेशन बाई      मुलेटेड इिमशन ऑफ रे िडएश
2.   लाइट ए     ॉ   न एं ड   मुलेटेड इिमशन ऑफ रे िडएश
3.   लाइट ए     ीिफकेशन बाई      ॉ े िनयस इिमशन ऑफ रे िडएश
4.   लाइट ए     ॉ   न बाई    ॉ े िनयस इिमशन ऑफ रे िडएश


Question Number : 117 Question Id : 9277597415 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
When the atoms in the ground state in simulated emission, the life time is ____________.
Options :
1.   10 sec
2.   1 sec
3.   infinity
4.   60 sec


Question Number : 117 Question Id : 9277597415 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
जब परमाणु आ         थित म कृि म उ जन म होते ह, तो जीवन काल ______ होता है ।
Options :
1.   10 सेकंड
2.   1 सेकंड
3.   अनंत
4.   60 सेकंड


Question Number : 118 Question Id : 9277597416 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the isospin of pions?
Options :
1.   1
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 100 of 175
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2.   -(1 ÷ 2)
3.   0
4.   1÷2


Question Number : 118 Question Id : 9277597416 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िपयो का समभा रक च ण (isospin)       ा है ?
Options :
1.   1
2.   -(1 ÷ 2)
3.   0
4.   1÷2


Question Number : 119 Question Id : 9277597417 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following particle known as God particle?
Options :
1.   Photon
2.   Positron
3.   Higgs boson
4.   Quasar


Question Number : 119 Question Id : 9277597417 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 कण गॉड पािटकल के        प म जाना जाता है ?
Options :
1.   फोटॉन
2.   पोज़ीटॉन
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 101 of 175
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3.   िह      बॉसन
4.   कैसर ( ै सर)


Question Number : 120 Question Id : 9277597418 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Positrons have same mass but opposite electric charge. This is the antiparticle of __________.
Options :
1.    Electron
2.    Proton
3.    Neutron
4.    Photon


Question Number : 120 Question Id : 9277597418 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
पॉिज़टॉ का             मान समान लेिकन िवपरीत िवद् युत आवेश होता है , यह ______ का ितकण होता है ।
Options :
1.   इले         ॉन
2.    ोटॉन
3.        ूटॉन
4.   फोटॉन



                                                                 Discipline2
Group Number :                                                                   7
Group Id :                                                                       927759267
Group Maximum Duration :                                                         0
Group Minimum Duration :                                                         0
Show Attended Group? :                                                           No
Edit Attended Group? :                                                           No
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 102 of 175
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Break time :                                                          0
Group Marks :                                                         20
Is this Group for Examiner? :                                         No



                                                        Discipline2
Section Id :                                                          927759293
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 :                                                      927759348
Question Shuffling Allowed :                                          Yes

Question Number : 121 Question Id : 9277597419 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :
1.

2.

3.

4.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 103 of 175
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Text of page 103
Question Number : 121 Question Id : 9277597419 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :

1.


2.


3.


4.



Question Number : 122 Question Id : 9277597420 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
For the given dispersion relation, ω(k) = A ka/2, the group velocity is ___________.
Options :
1.    Aa ÷2
2.    Aa
3.    Aka ÷2
4.    Aka


Question Number : 122 Question Id : 9277597420 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िदए गए प र ेपण संबंध के िलए, ω(k) = A ka/2, समूह वेग ______ है ।
Options :
1.   Aa ÷2
2.   Aa
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 104 of 175
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Text of page 104
3.   Aka ÷2
4.   Aka


Question Number : 123 Question Id : 9277597421 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
On passing through the neon gas, plasma and light produces _________.
Options :
1.   electric current
2.   Voltage
3.   ions
4.   electric field


Question Number : 123 Question Id : 9277597421 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िनयॉन गैस से गुज़रने पर   ा मा और काश ______ उ    करते ह।
Options :
1.   िवद् युत धारा
2.   वो   ता
3.   आयन
4.   िवद् युत े


Question Number : 124 Question Id : 9277597422 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
When the planet is nearest to the sun, this position is called as _________.
Options :
1.   Apogee
2.   Aphelion
3.   Perigee
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 105 of 175
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Text of page 105
4.   Perihelion


Question Number : 124 Question Id : 9277597422 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
जब कोई ह सूय के सबसे िनकट होता है , तो इस थित को ______ कहा जाता है ।
Options :
1.   िशरोिबंदु (Apogee)
2.   सूय       (Aphelion)
3.   भू-समीपक (Perigee)
4.   सूय समीपक (Perihelion)


Question Number : 125 Question Id : 9277597423 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Universe is expanding, the rate of this expansion is __________.
Options :
1.   accelerating
2.   decelerating
3.   zero
4.   constant


Question Number : 125 Question Id : 9277597423 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
  ां ड का िव    ार हो रहा है , इस िव   ार की दर ______ है ।
Options :
1.        रणशील
2.   मंद
3.   शू
4.     थर
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 106 of 175
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Text of page 106
Question Number : 126 Question Id : 9277597424 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
What is the sum of the eigenvalues of the matrix?
Options :
1.   trace of the matrix
2.   determinant of the matrix
3.   order of the matrix
4.   no. of elements in the matrix


Question Number : 126 Question Id : 9277597424 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
आ ूह (matrix) के अिभला िणक (eigen) मान का योग    ा है ?
Options :
1.   आ ूह का िनशान
2.   आ ूह का िनधारक
3.   आ ूह की कोिट
4.   आ ूह म अवयवों की सं   ा


Question Number : 127 Question Id : 9277597425 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
All the elements in the null matrix is __________.
Options :
1.    1
2.    zero
3.    2
4.    -1


Question Number : 127 Question Id : 9277597425 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 107 of 175
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Text of page 107
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
शू आ ूह म सभी अवयव ______ होते ह।
Options :
1.   1
2.   शू
3.   2
4.   -1


Question Number : 128 Question Id : 9277597426 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The system which is constituted by many non-identical elements connected by diverse interactions is known as ____________.
Options :
1.   social network
2.   online network
3.   complex system
4.   Semantic network


Question Number : 128 Question Id : 9277597426 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
असमान अ ो ि या से जुड़े कई गैर-समान त ों ारा गिठत णाली को ______ के     प म जाना जाता है ।
Options :
1.   सामािजक संजाल
2.   ऑनलाइन संजाल
3.   जिटल णाली
4.   अथ-संबंधी संजाल


Question Number : 129 Question Id : 9277597427 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 108 of 175
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Text of page 108
Correct Marks : 1 Wrong Marks : 0.25
Limit cycle is the non-linear phenomena, the trajectory of this is __________.
Options :
1.   Isolated closed trajectory
2.   Isolated open trajectory
3.   straight line trajectory
4.   elliptical trajectory


Question Number : 129 Question Id : 9277597427 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
सीमा च गैर-रे खीय प रघटना है , इसका       ेपव   ______ है ।
Options :
1.   पृथक बंद     ेपव
2.   पृथक खुला      ेपव
3.   ऋजु रे खीय     ेपव
4.   दीघवृ ीय      ेपव


Question Number : 130 Question Id : 9277597428 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A nucleus of mass no. 200 decays into the ground state of its daughter nuclei. What is the energy of the particle if Q-value of the process is 4
MeV.
Options :
1.   3.92 MeV
2.   4.89 MeV
3.   5.34 MeV
4.   2.63 MeV


Question Number : 130 Question Id : 9277597428 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 109 of 175
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Text of page 109
मान सं ा 200 के एक नािभक का य अपने संतित नािभक की आ अव था म होता है । यिद ि या का Q-मान 4 MeV है , तो कण की ऊजा       ा है ?
Options :
1.   3.92 MeV
2.   4.89 MeV
3.   5.34 MeV
4.   2.63 MeV


Question Number : 131 Question Id : 9277597429 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which one of the following is NOT 1D nanomaterial?
Options :
1.   nanotubes
2.   nanorods
3.   nanowires
4.   bundles of nanotubes


Question Number : 131 Question Id : 9277597429 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 1डी (1D) नैनोमैटे रयल नही ं है ?
Options :
1.   नैनो   ू
2.   नैनोरॉड् स
3.   नैनोवायस
4.   नैनो   ू     के बंडल


Question Number : 132 Question Id : 9277597430 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
D-branes stands for __________.
Options :
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 110 of 175
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Text of page 110
1.   Dirac membrane
2.   Dirichlet brane
3.   Dirichlet membrane
4.   Dirac - Brane


Question Number : 132 Question Id : 9277597430 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
D- स का अथ ______ है ।
Options :
1.   डायराक मबरे न (Dirac membrane)
2.   िड रचले ेन (Dirichlet brane)
3.   िड रचले मबरे न (Dirichlet membrane)
4.   डायराक - ेन (Dirac – Brane)


Question Number : 133 Question Id : 9277597431 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :
1.


2.



3.


4.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 111 of 175
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Text of page 111
Question Number : 133 Question Id : 9277597431 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :
1.


2.



3.


4.



Question Number : 134 Question Id : 9277597432 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :
1.


2.


3.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 112 of 175
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Text of page 112
4.



Question Number : 134 Question Id : 9277597432 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :

1.


2.


3.


4.



Question Number : 135 Question Id : 9277597433 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :
1.

2.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 113 of 175
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Text of page 113
3.

4.



Question Number : 135 Question Id : 9277597433 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :
1.


2.


3.


4.



Question Number : 136 Question Id : 9277597434 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :
1.

2.

3.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 114 of 175
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Text of page 114
4.



Question Number : 136 Question Id : 9277597434 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :
1.


2.


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4.



Question Number : 137 Question Id : 9277597435 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :



1.



2.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 115 of 175
Page 115 of 175
Text of page 115
3.




4.



Question Number : 137 Question Id : 9277597435 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :



1.



2.



3.




4.



Question Number : 138 Question Id : 9277597436 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 116 of 175
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1.




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Question Number : 138 Question Id : 9277597436 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :



1.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 117 of 175
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Text of page 117
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3.




4.



Question Number : 139 Question Id : 9277597437 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :

1.


2.


3.


4.



Question Number : 139 Question Id : 9277597437 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 118 of 175
Page 118 of 175
Text of page 118
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Question Number : 140 Question Id : 9277597438 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :
1.

2.

3.

4.



Question Number : 140 Question Id : 9277597438 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 119 of 175
Page 119 of 175
Text of page 119
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




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4.




                                       Discipline3
Group Number :                                   8
Group Id :                                       927759268
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 :                                     927759294
Section Number :                                 1
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 120 of 175
Page 120 of 175
Text of page 120
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 :                                                      927759349
Question Shuffling Allowed :                                          Yes

Question Number : 141 Question Id : 9277597439 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :
1.

2.

3.

4.



Question Number : 141 Question Id : 9277597439 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :
1.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 121 of 175
Page 121 of 175
Text of page 121
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3.


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Question Number : 142 Question Id : 9277597440 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
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Options :
1.

2.

3.

4.



Question Number : 142 Question Id : 9277597440 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 122 of 175
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Question Number : 143 Question Id : 9277597441 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :
1.

2.

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Question Number : 143 Question Id : 9277597441 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 123 of 175
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Question Number : 144 Question Id : 9277597442 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :


1.



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4.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 124 of 175
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Question Number : 144 Question Id : 9277597442 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
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Question Number : 145 Question Id : 9277597443 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :

1.


2.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 125 of 175
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4.



Question Number : 145 Question Id : 9277597443 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
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Question Number : 146 Question Id : 9277597444 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :


1.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 126 of 175
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Question Number : 146 Question Id : 9277597444 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
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Question Number : 147 Question Id : 9277597445 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 127 of 175
Page 127 of 175
Text of page 127
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


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Question Number : 147 Question Id : 9277597445 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


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Question Number : 148 Question Id : 9277597446 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 128 of 175
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Question Number : 148 Question Id : 9277597446 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :
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Question Number : 149 Question Id : 9277597447 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 129 of 175
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DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 130 of 175
Page 130 of 175
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Question Number : 149 Question Id : 9277597447 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :




1.




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DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 131 of 175
Page 131 of 175
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Question Number : 150 Question Id : 9277597448 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :
1.

2.

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Question Number : 150 Question Id : 9277597448 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 132 of 175
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Question Number : 151 Question Id : 9277597449 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :


1.



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Question Number : 151 Question Id : 9277597449 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 133 of 175
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Question Number : 152 Question Id : 9277597450 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :
1.


2.


3.


4.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 134 of 175
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Question Number : 152 Question Id : 9277597450 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :
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Question Number : 153 Question Id : 9277597451 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :


1.



2.



3.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 135 of 175
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Question Number : 153 Question Id : 9277597451 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :


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Question Number : 154 Question Id : 9277597452 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 136 of 175
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Question Number : 154 Question Id : 9277597452 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



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DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 137 of 175
Page 137 of 175
Text of page 137
Question Number : 155 Question Id : 9277597453 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :




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DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 138 of 175
Page 138 of 175
Text of page 138
4.



Question Number : 155 Question Id : 9277597453 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :




1.




2.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 139 of 175
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Text of page 139
3.




4.



Question Number : 156 Question Id : 9277597454 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :

1.


2.


3.


4.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 140 of 175
Page 140 of 175
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Question Number : 156 Question Id : 9277597454 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :

1.


2.


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4.



Question Number : 157 Question Id : 9277597455 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :
1.

2.

3.

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Question Number : 157 Question Id : 9277597455 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 141 of 175
Page 141 of 175
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Correct Marks : 1 Wrong Marks : 0.25


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Question Number : 158 Question Id : 9277597456 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :

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Question Number : 158 Question Id : 9277597456 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 142 of 175
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Correct Marks : 1 Wrong Marks : 0.25



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Question Number : 159 Question Id : 9277597457 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :

1.


2.


3.


4.



Question Number : 159 Question Id : 9277597457 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 143 of 175
Page 143 of 175
Text of page 143
Correct Marks : 1 Wrong Marks : 0.25


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Question Number : 160 Question Id : 9277597458 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :

1.


2.


3.


4.



Question Number : 160 Question Id : 9277597458 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 144 of 175
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Options :

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4.




                                Discipline4
Group Number :                            9
Group Id :                                927759269
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



                                Discipline4
Section Id :                              927759295
Section Number :                          1
Section type :                            Online
Mandatory or Optional :                   Mandatory
Number of Questions :                     20
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 145 of 175
Page 145 of 175
Text of page 145
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 :                                                      927759350
Question Shuffling Allowed :                                          Yes

Question Number : 161 Question Id : 9277597459 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :
1.

2.

3.

4.



Question Number : 161 Question Id : 9277597459 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :
1.


2.


3.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 146 of 175
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Text of page 146
4.



Question Number : 162 Question Id : 9277597460 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :

1.




2.



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Question Number : 162 Question Id : 9277597460 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :

1.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 147 of 175
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Text of page 147
2.



3.



4.



Question Number : 163 Question Id : 9277597461 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :
1.

2.


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Question Number : 163 Question Id : 9277597461 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 148 of 175
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Question Number : 164 Question Id : 9277597462 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :


1.



2.


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DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 149 of 175
Page 149 of 175
Text of page 149
Question Number : 164 Question Id : 9277597462 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :


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2.


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Question Number : 165 Question Id : 9277597463 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :

1.


2.


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4.
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 150 of 175
Page 150 of 175
Text of page 150
Question Number : 165 Question Id : 9277597463 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :

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Question Number : 166 Question Id : 9277597464 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


Options :


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DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 151 of 175
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Text of page 151
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Question Number : 166 Question Id : 9277597464 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25


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Question Number : 167 Question Id : 9277597465 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The crime scene and forensic evidence contain messages that will lead to the answers the investigators need to solve the crime. By studying
crimes and talking to perpetrators who have committed violent crimes, investigators can learn to apply and solve the equation of Why + How =
________.
Options :
1.   What
2.   When
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 152 of 175
Page 152 of 175
Text of page 152
3.   Who
4.   Now


Question Number : 167 Question Id : 9277597465 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
अपराध थल और ाियक सा म ऐसे संदेश होते ह जो जां चकताओं को अपराध की गु ी सुलझाने के िलए आव क उ रों की ओर ले जाते ह। अपराधों का
अ यन करके और िहं सक अपराध करने वाले अपरािधयों से बातचीत करके, जां चकता ों + कैसे = ______ (why + how = ______) समीकरण को लागू
करना और हल करना सीख सकते ह।
Options :
1.     ा
2.   कब
3.   कौन
4.   अब


Question Number : 168 Question Id : 9277597466 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Forensic Anthropology Society of Europe (FASE) was formed in:
Options :
1.   1994
2.   1997
3.   2003
4.   2007


Question Number : 168 Question Id : 9277597466 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
फॉरिसक एं ोपोलॉजी सोसाइटी ऑफ़ यूरोप (FASE) का गठन कब आ था?
Options :
1.   1994
2.   1997
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 153 of 175
Page 153 of 175
Text of page 153
3.   2003
4.   2007


Question Number : 169 Question Id : 9277597467 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The scientific study of bones is known as:
Options :
1.   Morphology
2.   Osteology
3.   Paleontology
4.   Anthropology


Question Number : 169 Question Id : 9277597467 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
अ थयों का वै ािनक अ यन     ा कहलाता है ?
Options :
1.   आकृित िव ान
2.   अ थ िव ान
3.   जीवा   िव ान
4.   मानव िव ान


Question Number : 170 Question Id : 9277597468 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
If the third molar crowns are less than half complete, it is virtually certain that the subject is less than:
Options :
1.    9 yr old
2.    11 yr old
3.    12 yr old
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 154 of 175
Page 154 of 175
Text of page 154
4.   14 yr old


Question Number : 170 Question Id : 9277597468 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद तीसरा दाढ़ शीष आधे से कम पूण ह, तो यह लगभग िनि त है िक       िकससे कम आयु का है ?
Options :
1.   9 वष
2.   11 वष
3.   12 वष
4.   14 वष


Question Number : 171 Question Id : 9277597469 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
One of the best-known methods of measuring skeletal maturity in children and young adults is by radiological assessment of:
Options :
1.   Hand and wrist bone development
2.   Tibia and fibula development
3.   Skull bones development
4.   Vertebrae development


Question Number : 171 Question Id : 9277597469 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
ब ों और युवा वय   ों म कंकाल की प रप ता को मापने के सवािधक िस    तरीकों म से एक ______ का िविकरण िव ानीय मू   ां कन करना है ।
Options :
1.   हाथ और कलाई की अ थयों के िवकास
2.   अंतजिघका और बिहजिघका के िवकास
3.   कपाल की अ थयों के िवकास
4.   कशे काओं के िवकास
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 155 of 175
Page 155 of 175
Text of page 155
Question Number : 172 Question Id : 9277597470 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Forensic medicine was also termed as state medicine. The term 'state medicine' was recommended by:
Options :
1.   Dr. William Bass
2.   Dr. Joseph bell
3.   Dr. Edmond Lo card
4.   Dr. Stanford Emersion Chaille


Question Number : 172 Question Id : 9277597470 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
 ाियक िचिक ा को राजकीय िचिक ा भी कहा जाता था। ‘राजकीय िचिक ा’ श      ावली की सं   ुित िकसके ारा की गई थी?
Options :
1.   डॉ. िविलयम बास
2.   डॉ. जोसेफ़ बेल
3.   डॉ. एडमंड लो काड
4.   डॉ.   ै नफ़ोड इमसन चैल


Question Number : 173 Question Id : 9277597471 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following courts in India CANNOT pass death sentences?
Options :
1.   Supreme court
2.   High court
3.   Additional sessions judge
4.   Chief judicial magistrate


Question Number : 173 Question Id : 9277597471 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 156 of 175
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Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
भारत म, िन िल खत म से कौन सा       ायालय मृ ु दं ड नही ं दे सकता है ?
Options :
1.   सव        ायालय
2.   उ        ायालय
3.   अित र     स          ायाधीश
4.   मु       ाियक दं डािधकारी


Question Number : 174 Question Id : 9277597472 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
In Indian legal system the inquest is held by investigating officer not below the rank of:
Options :
1.    Head constable
2.    Senior head constable
3.    Assistant sub-inspector
4.    Inspector


Question Number : 174 Question Id : 9277597472 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
भारतीय िविधक णाली म, जां च-पड़ताल ऐसे जां च-अिधकारी ारा की जाती है , जो पद म ________ से कम ेणी का न हो।
Options :
1.   मु   आर ी (हे ड कां े बल)
2.   व र मु       आर ी (सीिनयर हे ड कां े बल)
3.   सहायक उपिनरी क (अिस ट सब-इं            े   र)
4.   िनरी क (इं       े   र)


Question Number : 175 Question Id : 9277597473 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 157 of 175
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Text of page 157
Correct Marks : 1 Wrong Marks : 0.25
In the word Adipocere, "Adipo" stands for:
Options :
1.    Fat
2.    Wax
3.    Soft tissues
4.    Lipid


Question Number : 175 Question Id : 9277597473 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
एिडपोसीर (शविस     )श    म “एिडपो” का        ा अथ है ?
Options :
1.   वसा
2.   मोम
3.   मृदु ऊतक
4.   लसीका


Question Number : 176 Question Id : 9277597474 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 used as buffer in embalming procedure?
Options :
1.   Formalin
2.   Sodium borate
3.   Sodium citrate
4.   Glycerine


Question Number : 176 Question Id : 9277597474 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 उपयोग शवलेपन ि या म बफर के           प म िकया जाता है ?
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 158 of 175
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Text of page 158
Options :
1.   फ़ॉमिलन
2.   सोिडयम बोरे ट
3.   सोिडयम साइटे ट
4.      सरीन


Question Number : 177 Question Id : 9277597475 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
A dead body if found under water tied with stone. The average temperature of water was measured 4° C throughout the year. Forensic study
revealed the significant saponification. Then the body must be under water at least for:
Options :
1.   6-8 months
2.   12-18 months
3.   22-26 months
4.   29-33 months


Question Number : 177 Question Id : 9277597475 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
यिद कोई शव पानी के अंदर प र से बंधा पाया जाता है । पूरे वष पानी का औसत तापमान 4° C मापा गया।     ाियक अ यन से मह पूण साबुनीकरण का पता
चला। तब शव पानी के अंदर कम से कम ________ अव रहा होना चािहए।
Options :
1.   6-8 माह
2.   12-18 माह
3.   22–26 माह
4.   29–33 माह


Question Number : 178 Question Id : 9277597476 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 a lung damaging agent?
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 159 of 175
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Text of page 159
Options :
1.   Phosgene
2.   Tabun
3.   Norbromide
4.   Bromoxynil


Question Number : 178 Question Id : 9277597476 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 फेफड़े को नुकसान प ं चाने वाला अिभकता है ?
Options :
1.   फ़ॉ      ीन
2.   ताबुन
3.   नॉ माइड
4.    ोमॉ         िनल


Question Number : 179 Question Id : 9277597477 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The Drugs and Cosmetics Act was amended in ________ to include Ayurveda and Unani drugs.
Options :
1.   1940
2.   1962
3.   1964
4.   1978


Question Number : 179 Question Id : 9277597477 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
आयुवद और यूनानी दवाओं को शािमल करने के िलए औषध और साधन साम ी अिधिनयम को ________ म संशोिधत िकया गया था।
Options :
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 160 of 175
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Text of page 160
1.   1940
2.   1962
3.   1964
4.   1978


Question Number : 180 Question Id : 9277597478 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The punishment for causing hurt by means of poison or any stupefying, intoxicating or unwholesome drug or other thing with the intent to
commit an offence is dealt under:
Options :
1.   Section 176 of IPC
2.   Section 202 of IPC
3.   Section 271 of IPC
4.   Section 328 of IPC


Question Number : 180 Question Id : 9277597478 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
कोई अपराध करने के इरादे से िवष या िकसी मादक, नशीली या अ      ा   कर औषिध या िकसी अ        व   ु ारा हािन प ँ चाने के िव   दं ड की कारवाई
________ के अंतगत की जाती है ।
Options :
1.   IPC की धारा 176
2.   IPC की धारा 202
3.   IPC की धारा 271
4.   IPC की धारा 328



                                                              Discipline5
Group Number :                                                                10
Group Id :                                                                    927759270
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 161 of 175
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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 :                                                          927759296
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 :                                                      927759351
Question Shuffling Allowed :                                          Yes

Question Number : 181 Question Id : 9277597479 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Indian lunacy act was placed in 1912. It was amended to mental health act in:
Options :
1.   1937
2.   1956
3.   1987
4.   1983
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 162 of 175
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Text of page 162
Question Number : 181 Question Id : 9277597479 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
भारतीय पागलपन अिधिनयम 1912 म बनाया गया था। इसे मानिसक    ा   अिधिनयम म कब संशोिधत िकया गया?
Options :
1.   1937
2.   1956
3.   1987
4.   1983


Question Number : 182 Question Id : 9277597480 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The Pinfire system was introduced at Great Exhibition in London in
Options :
1.   1820
2.   1851
3.   1933
4.   1947


Question Number : 182 Question Id : 9277597480 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िपनफ़ायर णाली का आरं भ लंदन म ेट ए ज़ीबीशन म कब िकया गया था?
Options :
1.   1820
2.   1851
3.   1933
4.   1947


Question Number : 183 Question Id : 9277597481 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 163 of 175
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Text of page 163
Correct Marks : 1 Wrong Marks : 0.25
The usual fatal dose for a drug is given as 65 mg/kg then its toxicity rating is:
Options :
1.   Extremely toxic
2.   Moderately toxic
3.   Very toxic
4.   Super toxic


Question Number : 183 Question Id : 9277597481 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
िकसी औषिध के िलए सामा        घातक खुराक 65 mg/kg के        प म दी जाती है , तो इसका िवषा   ता अनुमतां क (rating)   ा होगा?
Options :
1.   अ िधक िवषा
2.   म म िवषा
3.   अिधक िवषा
4.   अित िवषा


Question Number : 184 Question Id : 9277597482 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
If a bullet is designed such that it has diameter 0.625 inches and length 6.35 cm. The rate of twist for the firearm by which it would be fired is
(approx):
Options :
1.    17 inch
2.    23 inch
3.    31 inch
4.    43 inch


Question Number : 184 Question Id : 9277597482 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 164 of 175
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Text of page 164
यिद एक गोली इस कार िडज़ाइन की जाती है िक उसका     ास 0.625 IN (इं च) और लंबाई 6.35 cm हो। उस आ ेया   के िलए घुमाव अनुमतां क (लगभग)
िकतना होगा िजसके ारा इसे दागा जाना है ?
Options :
1.   17 IN (इं च)
2.   23 IN (इं च)
3.   31 IN (इं च)
4.   43 IN (इं च)


Question Number : 185 Question Id : 9277597483 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25



Options :
1.   Brachial index
2.   Crural index
3.   Humero-Femoral index
4.   Cephalic index


Question Number : 185 Question Id : 9277597483 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :
1.   बा सूचकां क
2.   अधमां ग सूचकां क
3.    गंिडका-ऊिवका सूचकां क
4.   िशर    सूचकां क
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 165 of 175
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Text of page 165
Question Number : 186 Question Id : 9277597484 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The Weapon in which the ammunition is inserted into the rear of the barrel is called:
Options :
1.   Revolver
2.   Breech loader
3.   Rimfire
4.   Muzzle loader


Question Number : 186 Question Id : 9277597484 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
वह हिथयार िजसम बैरल के िपछले िह     े म गोला बा द डाला जाता है ,   ा कहलाता है ?
Options :
1.    रवॉ   र
2.     ीच लोडर
3.    रमफ़ायर
4.   मज़ल लोडर


Question Number : 187 Question Id : 9277597485 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
There are only four possible blood types A, B, AB, and O. The vast majority of people in any population have two of these types which are:
Options :
1.   A and O
2.   A and B
3.   AB and O
4.   B and AB


Question Number : 187 Question Id : 9277597485 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 166 of 175
Page 166 of 175
Text of page 166
Correct Marks : 1 Wrong Marks : 0.25
केवल चार संभािवत र      कार A, B, AB और O होते ह। िकसी भी जनसं        ा म अिधकां श लोगों म इनम से दो कार के र      िमलते ह, वह दो कार कौन से
ह?
Options :
1.   A और O
2.   A और B
3.   AB और O
4.   B और AB


Question Number : 188 Question Id : 9277597486 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The process of digesting carbohydrates in the diet begins in the oral cavity. An enzyme from saliva catalyzes the “breakdown” of carbohydrates.
The enzyme is:
Options :
1.   Amylase
2.   Chitinase
3.   Maltase
4.   Lysozyme


Question Number : 188 Question Id : 9277597486 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
आहार म काब हाइडे ट को पचाने की ि या मुख गुहा म ही आरं भ हो जाती है । लार का एं ज़ाइम काब हाइडे ट के "िवखंडन" को उ े रत करता है । वह एं ज़ाइम
कौन सा है ?
Options :
1.   एमाइलेज़
2.   काइिटनेज़
3.   मा े ज़
4.   लाइज़ोज़ाइम
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 167 of 175
Page 167 of 175
Text of page 167
Question Number : 189 Question Id : 9277597487 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The internet's first online serial killer is known as:
Options :
1.   The Hurt Locker
2.   Slave master
3.   Jack the Ripper
4.   Ted Bundy


Question Number : 189 Question Id : 9277597487 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
इं टरनेट का पहला ऑनलाइन सी रयल िकलर िकस नाम से जाना जाता है ?
Options :
1.   द हट लॉकर
2.      ेव मा र
3.   जैक द रपर
4.   टे ड बंडी


Question Number : 190 Question Id : 9277597488 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The active principle in Indian liquorice is:
Options :
1.   Crotin
2.   Ricin
3.   Abrin
4.   Pulchellin


Question Number : 190 Question Id : 9277597488 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 168 of 175
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Text of page 168
Correct Marks : 1 Wrong Marks : 0.25
भारतीय मुलेठी (िलक रस) म सि य िविश त      ा है ?
Options :
1.    ोिटन
2.   रिसन
3.   ऐि न
4.   पुलचेिलन


Question Number : 191 Question Id : 9277597489 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The ammunition which is same as bulleted ammunition except for the omission of the missile is known as:
Options :
1.   Rimfire ammunition
2.   Centre fire ammunition
3.   Caseless ammunition
4.   Blank ammunition


Question Number : 191 Question Id : 9277597489 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
वह गोला बा द जो िमसाइल के चूक के अित र   गोली के गोला बा द के समान होता है , िकस   प म जाना जाता है ?
Options :
1.   रमफ़ायर गोलाबा द
2.   सटर फ़ायर गोलाबा द
3.   केसलेस गोलाबा द
4.     क गोलाबा द


Question Number : 192 Question Id : 9277597490 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 169 of 175
Page 169 of 175
Text of page 169
Options :
1.   Crane
2.   Ratchet
3.   Sling swivel
4.   Swinging link


Question Number : 192 Question Id : 9277597490 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25




Options :
1.    ेन
2.   रै चेट
3.       ंग    वेल
4.       ंिगंग िलंक


Question Number : 193 Question Id : 9277597491 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 170 of 175
Page 170 of 175
Text of page 170
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Macintosh 128 k was introduced in:
Options :
1.   1978
2.   1984
3.   1988
4.   1991


Question Number : 193 Question Id : 9277597491 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
मैिकंटोश 128 k का आरं भ कब आ था?
Options :
1.    1978
2.    1984
3.    1988
4.    1991


Question Number : 194 Question Id : 9277597492 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following chemical is used for identifying the amplified PCR products?
Options :
1.   Ethidium bromide
2.   Hydroxymethyl
3.   Iodine monochloride
4.   Sodium tetraborate


Question Number : 194 Question Id : 9277597492 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 171 of 175
Page 171 of 175
Text of page 171
विधत पी.सी.आर. (PCR) उ ादों की पहचान के िलए िन िल खत म से िकस रसायन का उपयोग िकया जाता है ?
Options :
1.   एथीिडयम ोमाइड
2.   हाइडॉ    ीिमथाइल
3.   आयोडीन मोनो      ोराइड
4.   सोिडयम टे टाबोरे ट


Question Number : 195 Question Id : 9277597493 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Lead sulphide is used in:
Options :
1.   Collyrium for the eyes
2.   In local sedative for sprains
3.   Manufacture of paints
4.   Abortifacient


Question Number : 195 Question Id : 9277597493 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
लेड स फ़ाइड का योग िकसम िकया जाता है ?
Options :
1.   आँ खों के िलए सुरमा
2.   मोच म थानीय शामक
3.   पट् स का िनमाण
4.   गभनाशक


Question Number : 196 Question Id : 9277597494 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The preservative used to preserve urine sample is:
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 172 of 175
Page 172 of 175
Text of page 172
Options :
1.   Sodium fluoride
2.   Saturated saline
3.   Potassium oxalate
4.   Eosin


Question Number : 196 Question Id : 9277597494 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
मू के नमूने को संरि त करने के िलए यु   प रर क   ा है ?
Options :
1.   सोिडयम लोराइड
2.   संतृ   लवणीय
3.   पोटै िशयम ऑ ज़लेट
4.   इओिसन


Question Number : 197 Question Id : 9277597495 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following was designed for offline message access and works the best when one has only a single computer?
Options :
1.   IMAP
2.   POP
3.   TCP
4.   DNS


Question Number : 197 Question Id : 9277597495 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 ऑफ़लाइन संदेश ए      ेस के िलए िडज़ाइन िकया गया और वह सबसे अ   ा काम करता है जब िकसी के पास केवल एक ही कं ूटर
हो?
Options :
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 173 of 175
Page 173 of 175
Text of page 173
1.   IMAP
2.   POP
3.   TCP
4.   DNS


Question Number : 198 Question Id : 9277597496 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
The lunch box used in traditional phreaking tools was meant for:
Options :
1.   External microphone
2.   Creates a party line
3.   AM transmitter
4.   Taps into a neighbor’s phone


Question Number : 198 Question Id : 9277597496 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
पारं प रक ीिकंग उपकरणों म योग होने वाला लंच बॉ   िकसके िलए था?
Options :
1.   वा   माइ ोफ़ोन
2.   पाट लाइन िनमाण
3.   ए.एम. टां समीटर
4.   पड़ोसी के फोन म टै प


Question Number : 199 Question Id : 9277597497 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Which of the following DOESN'T turn blue litmus red?
Options :
1.   Oxalic acid
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 174 of 175
Page 174 of 175
Text of page 174
2.   Carbolic acid
3.   Formic acid
4.   Malic acid


Question Number : 199 Question Id : 9277597497 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 िकससे नीला िलटमस लाल नही ं होता है ?
Options :
1.   ऑ ज़ेिलक अ
2.   काब िलक अ
3.   फ़ॉिमक अ
4.   मैिलक अ


Question Number : 200 Question Id : 9277597498 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
Reports of certain government scientific experts are usually admitted in the court as evidence without their oral examination. It is admitted under
section:
Options :
1.    293(1) CrPC
2.    293(2) CrPC
3.    293(3) CrPC
4.    291 CrPC


Question Number : 200 Question Id : 9277597498 Question Type : MCQ Option Shuffling : Yes Is Question Mandatory : No Option
Orientation : Vertical
Correct Marks : 1 Wrong Marks : 0.25
कुछ सरकारी वै ािनक िवशेष ों की रपोट् स को सामा त:         ायालय म उनकी मौ खक जां च के िबना सा       के    पम     ीकार िकया जाता है । यह    ीकृित
िकस धारा के अंतगत होती है ?
Options :
1.   293(1) CrPC
DSSSB 2021 question paper, 13 September 2021, Senior Scientific Assistant (Ballistics), Shift 2, page 175 of 175
Page 175 of 175
Text of page 175
2.   293(2) CrPC
3.   293(3) CrPC
4.   291 CrPC
Page 1 of 175

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