DSSSB 2019: 29 September, Assistant Electric Fitter
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MKG-XXIV ITECHAEF/1 T/04
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I Certify that I have checked that the Roll Number and the Answer I undertake not to employ any unfair means in this exam. I have checked the Question ~~
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with Name Signature of the Candidate with Name
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Read the following instructions carefully before you begin to answer the questions.
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IMPORTANT INSTRUCTIONS TO CANDIDATES
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6. All questions are compulsory and carry equal marks. 6. ~ ~ 3lf.lcn<f t ~ ~ ORJGR: ~ tLI - - - - - - - - -
7. The paper carries negative markings. For each wrong 7. ~~if~~~ l~lWRf'l'iR-a;~ 0.25:kon<nRI
answer 0.25 mark will be deducted. ~ I ~
8. This Booklet contains 200 questions in all comprising the 8. ~ ~ if ~ 200 ~ t ~ f.I'"'I~f@ct m<TwfiR;r t :
following Sections: m<T Wl51'T ~ mil ctiT ~ ~ ~
Sections Test Components
No. of
Questions
Page
No. (31) i) ~ ~ 20 2- 5 '!
(A) i) General Awareness 20 2_ 5 ii) ~ ~ om (~ ~.
ii) General Intelligence and 0""'''' <4"'«11 20 6- 9 ,.
00,',) Reasoning Ability 20 106_-193 31Cfi'TfGl(ft~n,ci~
iil) <iIr<Rn 20 10-13 ~
Arithmetical and Numerical Ability 20 It"
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Iv) Hindi Language and Comprehension 20 14- 15 iv) ~ 1lm,3i'tni'N 20 14- 15
v) English Language and Comprehension 20 16- 17 v) ~ 1lm 3finn'Q 20 16-17 ~ IW
(9) Post Specific Subject-Related (or) ~~~-.r.itfI~ 100 18-37 16
Questions 100 18- 37 ~
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9. Use of Calculator/Palmtop/Laptop/Other Digital Instrument! 9. ~ / ~ / ~ / ~ ~
Mobile/Cell Phone/Pager is not allowed. ~ ~ / ~ <nT~ ~tl Jt.;
10. Candidates foUnd guilty of misconduct/using unfair means in the 1O. ~-~ if ~ ~ l!;<i ~ ~ ~ ~ ~ rrit ~ 'fl"
Examination Hall will be liable for appropriate penal/legal action. ~ ~ /~ ~ ~ 1:ff:f ~ I I .
11. The manner in which different questions are to be answered has 11. ~ m ~"3\'R~ ctiT ~ ~ ~ ~ tf'If§ Wt ~ ~
been explained at the back of this Booklet, which you should if ~ ~ ~ t, ~ :mq m ~"3\'R~ it ~ I nn=r:k~. ~
read carefully before actually answering the questions. ......1'1 •....•..,.'
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MKG-XXIV rrECHAEF/1 T/04 IIIIIIIIIIIW 1111111111111111111111 11111111111111111 1111111I111111111I11 1111111111111I1111I11111111
SECTION -A
i) General Awareness
1. Which one of the following is an artificial 6. The largest planet in the solar system is
lake? (A) Mars
(A) Kodaikanal lake (B) Earth
(B) Vembanad lake (C) Jupiter
(C) Chilka lake (D) None of the above
(D) None of the above
7. "Seoul Peace Prize - 2018" was
awarded to
2. Which one of the following diseases is
(A) Narendra Modi
not due to the contamination of water?
(B) Donald Trump
(A) Anaemia (C) Vladimar Putin
(B) Cholera (D) None of the above
(C) Diarrhoea
(D) None of the above 8. Patachitra a traditional painting art
mainly found in which of the following
3. Which one of the following brings the state ?
"Nutritionat a Glance ResearchReport"? (A) Odisha
(A) IMF (B) Kerala
(C) Rajasthan
(B) World Bank
(D) None of the above
(C) FAO
(D) None of the above
9. Cusec is a measure of the rate of flow
of liquid commonly used by the irrigation
4. A famous sports personality department to measure the water
Pankaj Advani is related to which of outflow. One Cusec is approximately
the following sports? equal to
(A) Carrom (A) 28.32 litres of water flow per second
(B) Snooker (B) 78.64 litres of water flow per second
(C) 138.76litresof waterflow per second
(C) Chess
(D) None of the above
(D) None of the above
10. In which of the following High Court the
5. Which one of the following is land locked first paperless e-court established in
state in India? India?
(A) Maharashtra (A) Hyderabad High Court
(B) Tamil Nadu (B) Bhopal High Court
(C) Telangana (C) Chennai High Court
(D) None of the above (D) None of the above
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11. Which of the following is known as 16. Who was the architect of Operation Flood
golden fibre? in India?
(A) Silk (8) Wool (A) Dr. Verghese Kurien
(C) Cotton (D) Jute (8) M. S. Swaminathan
(C) Amartya Sen
12. Which of the following Article vested (D) None of the above
powers with the President to declare
Emergency because of threat to the 17. Ramsar convention is related to the
country's security due to external conservation of
aggression or war or armed rebellion? (A) Rivers
(A) Article 378 (8) Western Ghats
(8) Article 352 (C) Wetlands
(C) Article 112 (D) None of the above
(D) None of the above
18. Optical Fibre Cable (OFC) works on the
13. Who among the following is the principle of
14th President of India? (A) Total Internal Reflection
(A) , Pranab Mukherjee (8) Diffraction
(B) Ram Nath Kovind (C) Absorption
(C) Pratibha Patil (D) None of the above
(D) None of the above
19. Who among the following is the founder
14. Which of the following city is located on of E-commerce giant Allbaba ?
the bank of the river Sumida? (A) Jeff 8ezzos
(A) Tokyo,Japan (8) Mark Zuckerberg
(8) Beijing, China (C) Jack Ma
(C) New Delhi, India (D) None of the above
(D) None of the above
20. Which of the following crop is known as
15. World Lion Day celebrated every year on white gold?
(A) 10th August (A) Cotton crop
(8) 12th June (8) Mulberry crop
(C) 2nd March (C) Sunflower 'crop
(D) None of the above (D) None of the above
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ii) Generallntelligenee and Reasoning Ability
21. Complete the analogy. 26. Select the group of letters which is
Cow: Calf: : different from others.
(A) Cat: Kitten (A) MPS (B) tLO
(B) Lion: Puppy (C) SVY (D) ADF
(C) Dog: Cub
(D) Duck: Chicken 27. Find the correct alternative for Mars,
Mercury, Venus.
(A) Stars
22. Belt is to waist as is to neck.
(B) Planets
(A) Shorts
(B) Tie (C) Satellite
(C) Shirt (D) Asteroid
(D) Collar
28. Complete the series.
9,19,28,36,43,49,54,58,61, ?
23. Select the pair in which the numbers are
(A) 63 (B) 65
similarly related as in the pair 11 : 121.
(A) 1: 1 (C) 62 (D) 64
(B) 3: 6
(C) 7:14 29. Findthe missing letters that will complete
(D) 10: 110 the series abb __ b _ aa _ b _
(A) aabba
(B) ababa
24. Select the words which are least like
other words in the group. (C) abbaa
(A) Algebra (D) abaab
(B) Arithmetic
(C) Trigonometry 30. In a certain language if 'REMOTE'
(D) Stoichiometry is coded as 'ETOMER' then how is
'COPPER' coded?
25. Select the number which is different (A) REPPCO
from the rest three. (B) REPPOC
(A) 23 (B) 53 (C) PREPCO
(C) 79 (D) 93 (D) ERPPCO
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31. A and B are brothers. 'C and Dare 36. A is older than B but younger than C.
sisters. A's son is D's brother. How is D is younger than E but older than A.
B related to C ? If C is younger than 0, who is oldest
(A) Father of all?
(B) Brother (A) A (B) C
(C) Uncle (C) D (D) E
(D) Grandfather
37. If -+ means x, x means +, + means - and
- means -+, then what will be the value
32. Deepak went 20 meters to the East,
of 50 - 10 x 20 + 5 -+ 2 ?
he turned left and walked 15 meters.
(A) 25 (B) 15
He turned again right and went
35 meters. He again turned right and (C) 20 (D) 18
walked 15 meters. How far is he from
starting point? 38. Identify the wrong term in the series.
(A) 35 meters (B) 50 meters 69,55,26,13,5
(C) 55 meters (D) 60 meters (A) 5 (B) 55
(C) 13 (D) 26
33. English, French and Hindi can be
represented by 39. Find the missing number.
(A) @O (B) @ 9 5 6
(]]) 5 7 ?
(C) (D) 000
3 4 5
135 140 150
34. In a dictionary, which of the following
words will appear last ? (A) 8 (B) 10
(A) Actuate (B) Accumulate (C) 5 (D) 4
(C) Acquit (D) Achieve
40. Find the missing letter.
35. In the series 6 4 1 2 2 8 7 4 2 1 5 3 8 6
A E I
2 1 71 423286, how many pairs of
B F J
successive numbers have a difference
? G K
of 2 each?
(A) 4 (B) 5 (A) C (B) D
(C) 6 (D) 7 (C) E (D) F
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MKG-XXIVITECHAEF/1T/04 1111111111111111111111111111111111111111111111111111111111111111111111I111111111111111I1111111111111
iii) Arithmetical and Numerical Ability
41. The area of a triangle formed by the 46. A vertical pole of length 6 m casts a
points (5, ·2), (4,7) and (7, - 4) is shadow 4 m long on the ground and at
the same time a tower of height 'h' m
(A) 2 square units
casts shadow of length 28 m on the
(8) 3 square units ground. Then h =
(C) 4 square units (A) 42 m (8) 28 m
(0) None of these (C) 30 m (0) None of these
42. Value of sin60° 00s30° + oos60° sin30° is 47. The roots of the equation 5x2 - 6x - 2 =0
are
(A) 2 (8) 1
3 (A)
3±J19
(8)
1 ±m
(C) 3 (0) - 5 2
2
(C) 2,3 (0) None of these
43. The sum of first ten terms of the AP
2,7,12,17, ... is 48. When the polynomial p(x) x3 - 3x2 + 5x - 3 =
(A) 230 (8) 245 is divided by x2 - 2, the quotient
obtained is
(C) 255 (0) none of these
(A) 7x - 9 (8) x- 3
(C) x +3 (0) x-1
44. The sum of the terms of
34 + 32 + 30 + ... + 10 is 49. If HCF of 2 numbers 306 and 657 is 9
(A) 286 then LCM of same 2 numbers is
(A) 23228
(8) 198
(8) 22338
(C) 250
(C) 228
(0) None of these
(0) None of these
45. Which term of the AP, 3, 8,13,18, ...
50. A quadratic polynomial with sum
is 78?
and product of its zeroes' as -1 .!.,
(A) 10 respectively is 4
(8) 18 (A) x2 + x + .!. (8) X2 -.!. x -1
(C) 16 4 4
2 X
(C) X + - -1 (0) None of these
(0) None of these 4
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51 . If 10 students of class X took part in a
quiz and the number of girls is 4 more
than the number of boys. The number
.
55. ABCD is a cyclic
of girls who took part in the quiz is
(A) 4 -7x + 5
(8) 7 quadrilateral. The largest angle is
(C) 6 (A) 110° (B) 130°
(D) None of these (C) 120° (D) None of these
52. The sum of a two digit number and the 56. The product of 2 consecutive integers
number obtained by reversing the digits is 90. Then the 2 +ve integers are
is 66. If the digits differ by 2 and the digit (A) 9,10
in the unit place is smaller than the digit (B) 8,9
in the 10th place, the number is (C) 15,6
(A) 24 (8) 42 (O) None of these
(C) 62 (D) 26
57. The difference between the squares of
2 positive numbers is 180. The square
53. 5 years ago, A was thrice as old as B.
of the smaller number is 8 times the
10 years later A will be twice as old as B.
larger number. The two numbers are
Present age of A is
(A) 16,14 (B) 12,18
(A) 45 yrs. (C) 10, 8 (D) None of these
(B) 50 yrs.
(C) 35 yrs. 58. If probability of an event A is 0.1, then
(D) None of these P (not A) is
(A) 0.09 (B)0.99
(C) 0.9 (O) 0.1
54. A fraction becomes .! when 1 is
3
subtracted from the numerator and it 59. The mean of first 10 natural numbers is
becomes ± when 8 is added to its (A) 55
(C) 6
(B) 5.5
(O) None of these
denominator. The fraction is
5 3
(A) 12 (B) 11 60. If volume of a cube is 64 cm3, then its
side length is
6 (A) 8 cm (B) 32 cm
(C) 13 (D) None of these
(C) 4 cm (D) None of these
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M KG-XXIV rrECHAEF/1 T/04 1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111
v) English Language and Comprehension
~~3ffi~
Each of these questions presents a word that Read each sentence to find out whether there
may have been spelt incorrectly. From the is any error in it. The error, if any, will be in one
choices provided, pick the correct spelling part of the sentence, the number of that part
and mark that option of the right choice as is the answer.
the answer or pick 'no error' if you think that
is appropriate. 85. Antarctica is not only forbiddingly cold(1)/
and remote and is also protected (2)/
81. Enthusiestic by a treaty that preserves (3)/the continent
(A) Enthusiastic (8) Enthuciastic and wildlife (4).
(C) Enthosiestic (0) No error (A) 3 (8) 2
(C) 1 (0) 4
82. Amendment
(A) Amentmend
86. No sooner (1)/was the funeral (2)/over
(8) Ammendment
but Sandra (3)/left for the US (4).
(C) Amenndment
(A) 4 (8) 2
(0) No error
(C) 3 (0) 1
Fill in the blanks with appropriate articles from Add suitable question tags to the following
among the options. statements from among the choices given
below them.
83. The corruption of best
becomes the worst. 87. The Mehras were good hosts, __ ?
(A) a (A) were they
(8) the (8) wasn't he
(C) an (C) weren't they
(0) not required (0) aren't they
84. Tagore was a truly great 88. She hasn't recovered from the
poet. shock, ?
(A) The (A) hasn't she
(8) A (8) haven't it
(C) An (C) has she
(0) No article required (0) is she
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1111111111111I111I1111111111111111111111111111111111111111111111111111I111~IIIIIIII m 1111I11111111 MKG-XXIV rrECHAEF/1 T/04
Fill in the blanks with suitable preposition from Fill in the blank with appropriate modal form
among the choices given below them. from among the choices.
95. It's late. It's time home.
89. Torn's away at the moment. He's __
(A) we must go (8) we should go
holiday in France.
(C) we go (D) we went
(A) at (8) on
(C) in (D) for
Fill in the blank with appropriate form of the
90. I saw Jack __ a concert last Saturday. verb from among the options given below.
(A) at (8) on 96. We're good friends. We _
(C) in (D) for each other for a long time.
(A) have been knowing
91. I'm going away the end of (8) have known
January. (C) knew
(A) at (8) on (D) know
(C) in (D) None of these
Select the word that is most similar in meaning
Fill in the blanksWIThappropriatewords/phrases. (synonym) to the word given in the question.
97. Elucidate
92. Neither Jhonny nor Joe forgot that
____ a test on Monday. (A) Strengthen (8) Intensify
(A) they had (C) Sharpen (D) Clarify
(B) he had
98. Defer
(C) he has
(A) Delay (8) Refer
(D) they must have
(C) Assume (D) Bear
93. Five miles cover on foot.
(A) are too much for me to Select the word that is opposite in meaning
(antonym) to the word given in the question.
(8) were much enough for me to
(C) is too much for me to 99. Omnipotent
(D) are so long for me into (A) Ignorant (8) Powerless
(C) Dubious (D) Stable
94. If you need a coat you will have to buy
___ as I cannot give you mine. 100. Negate
(A) some (8) one (A) Promise (B) Add
(C) any (D) H (C) Deny (D) Affirm
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SECTION-B
Post Specific Subject-Related Questions .
101. Within elastic limit,the ratioof longitudinal 106. Molecular formula of Ozone is
stress to longitudinal strain is called as (A) 02 (B) H202
(A) Hooke's law (C) 03 (D) H203
(B) Young's modulus
(C) Bulk modulus 107. is a general purpose register
used for storing variable and temporary
(D) Modulus of rigidity
results.
(A) Memory address register
102. According to Lami's theorem, if three
(B) Memory buffer register
forces acting at a point are in equilibrium,
(C) Accumulator
then each force is directly proportional
(D) Instruction register
to the
(A) Cos of the angle between the other 108. 6 ohm and 4 ohm resistorsare connected
two forces in parallel through 240V supply. Total
(B) Tan of the angle between the other current flowing through the circuit is
two forces (A) 10 A (B) 100 A
(C) Sin of the angle between the other (C) 24 A (D) None of these
two forces
(D) Parallel to other two forces 109. Representative fraction of an object is
a ratio of
103. The chance that a leap year selected at (A) Drawing size to actual size
random will contain 53 Sundays is (B) Actual size to drawing size
(A) 1f7 (B) 217 (C) Plain scale to diagonal scale
(D) None of the above
(C) 3/7 (D) 4f7
110. In 1st angle projectionthe object is kept in
104. Find the distance between the parallel
(A) 1st quadrant (B) 2nd quadrant
lines 2x + 3y + 4 = 0 and 2x + 3y - 1 = o.
(C) 3rd quadrant (D) 4th quadrant
(A) 1 (B) 5/3
(C) -1/4 (D) 5/m 111. Two forces of 100 Nand 150 N are
acting simultaneously at a point. What
105. Number of gram-moles of solute is the resultant of these two forces, if
dissolved in 1 litre of a solution is the angle between them is 45°?
(A) Strength (B) Molarity (A) 232 N (B) 220 N
(C) Molality (D) Normality (C) 250 N (D) 150 N
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112. The forces, which meet at one point and 117. One horsepower equals how many
their lines of action also lie on the same watts?
plane, are.known as (A) 550 W (8) 746 W
(A) Coplanar non-concurrent forces
(C) 778 W (D) 1000 W
(8) Non-coplanar non-concurrent
forces
(C) Non-coplanar concurrent forces 118. A man of weight W = 712 N holds one
(D) Coplanar concurrent forces end of a rope that passes over a pulley
vertically above his head and to the
113. Aluminium Borate is usedas the dielectric other end of which is attached a weight
medium in which of the following type of Q = 534 N. Find the force with which the
capacitors ? man's feet press against the floor.
(A) Ceramic capacitor (A) 534 N (8) 200 N
(8) Mica capacitor
(C) 712 N (D) 178 N
(C) Paper capacitor
(D) Electrolytic capacitor
119. __ software allows the development
114. In which of the following types of of three-dimensional designs from
machines, electric energy is converted which conventional two-dimensional
to electromagnetic energy? orthographic views with automatic
(A) Lamp dimensioning can be produced.
(8) Heater (A) Python (8) C++
(C) Telegraph machine (C) CAD (D) None of these
(D) Electric bell .
115. With respect to construction, RCC 120. Which of the following analysis method
stands for employs well with CAD?
(A) Roller Coaster Concrete (A) Finite element analysis
(8) Reinforced Cement Concrete (8) Prediction analysis method
(C) Regional Cement Concrete (C) Principle element analysis
(D) Rebar Cement Concrete (D) None of these
116. means construction of buildings
121. For all practical purposes, potential of
using building blocks like stone, bricks,
concrete blocks etc. earth is taken as
(A) Foundation (8) Footing (A) Infinity (8) Zero
(C) Masonry (D) Grillage (C) One (D) None of these
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122. ACSR cable means 127. Stack is a portion of computer memory
(A) All Conductors Surface treated and which performs operations in _
Realigned manner.
(B) Aluminium Conductor Steel (A) First in first out
Reinforced (B) First in last out
(C) Anode Current Sinusoidally Run (C) last in last out
(D) Anodized Core Smooth Run (D) None of the above
123. The reciprocal of impedance of a circuit 128. Parity flag in a microprocessor
is called signifies the
(A) Resistance (B) Inductance (A) Carry generated
(C) Capacitance (D) Admittance (B) Sign of the output
(C) Overflow from the MSB
124. are used in high voltage lines (D) Number of odd and even ones
to take conductor load in tension which
often occurs at angles and dead ends. 129. The equipment connected between the
conductor and ground, to discharge the
(A) Pin insulator
excessive voltages to earth is
(B) Disc insulator
(A) Current transformer
(C) String insulator
(B) Voltage transformer
(D) All the above
(C) Relay
(D) Lighting arrester
125. As per , breakdown voltage in a
uniform field is a function of the product
130. Which of the following circuit breakers
of gas pressure and distance between
doesn't use air or gas as one of their
the electrodes. medium?
(A) Electron avalanche (A) Miniature circuit breaker
(B) Thermal stability principle (B) Bulk oil circuit breaker
(C) Paschen's law (C) Air blast circuit breaker
(D) Breakdown voltage law (D) SF 6 circuit breaker
126. A transmission line is said to be an ideal 131. The pressure coil of a dynamometer
line if type wattmeter is
(A) R = 0, G = ° (A) Highly inductive
(B) RG = LlC (B) Highly resistive
(C) With a large value of Rand G (C) Purely resistive
(D) RG = ...JC/l (D) Purely inductive
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MKG-XXIV rrECHAEF/1 T/04 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII~ IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII~IIIIIIIIIIIIIIIIIIIIIIII
132. An ammeterhas a currentrangeof 0-5 A, 137. Unknown frequency can be measured
and its internal resistance is 0.2 Q. using
In order to change the range to 0-25 A, (A) Anderson's bridge
(B) Maxwell's bridge
we need to add a resistance of
(C) De Sauty's bridge
(A) 0.8 Q in series with the meter
(D) Wien's bridge
(B) 1.0 Q in series with the meter
(C) 0.04 Q in parallel with the meter 138. FOllowingfigure shows a _
(D) 0.05 Q in parallel with the meter instrument used to measure medium
resistance.
133. An average-reading digital multi-meter
reads 10 V when fed with a triangular
wave, symmetric about the time-axis.
For the same input the rms-reading
meter will read
(A) 20/J"j (B) 101.J3
(C) 20J"j (D) 10J"j ,--_E""'i ~ fo-----'
(A) Ohmmeter
134. Magnetization current in a transformer (B) Voltmeter
produces in transformer core. (C) Wheatstone bridge
(D) Kelvin bridge
(A) Eddy current (8) Flux
(C) Power (D) None of these
139. ____ is a special type of power
FET that has the function of a BJT with
135. The ampere-hour efficiency of a lead its base driven by FET.
acid cell is normally between (A) BJT (B) IGBT
(A) 20-25% (B) 40-50% (C) FET (D) None of these
(C) 60-65% (D) 90-95%
140. ____ converts ac power at one
input frequency to output power at a
136. The shunt resistance in an ammeter is different frequency in a one stage power
usually conversion process.
(A) less than meter resistance (A) Inverter
(B) equal to meter resistance (B) Chopper
(C) more than meter resistance (C) Cycloconverter
(D) none of these (D) Voltage regulator
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MKG-XXIV ITECHAEF/1 T/04 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII~ 111111111111111111111111111111111111111111111I111111111111111111
141. In Kando system of track electrification, 144. Complete the following sentence:
is converted into An open-loop control system utilizes an
(A) 1-phase ac, dc actuating device to control a process
(B) 3-phase ac, 1-phase ac directly
(C) 1-phase ac, 3-phase ac (A) without using feedback
(0) 3-phase ac, dc (B) using feedback
(C) in engineering design
142. Presently which of the following railway (0) in engineering synthesis
track electrification uses single phase
ac system?
145. Control of an industrial process by
(A) 600 V automatic rather than manual means
(B) 1500 V is often called
(C) 15-25 kV (A) negative feedback
(0) All the above (B) automation
(C) a design gap
143. The equivalent transfer function of (D) a specification
3 parallel blocks
1 1 146. The output Y of a 2-bit comparator
G1(s) = -, G2(s) = -4'
s+1 s+
is logic 1 whenever the 2-bit input
G ()S =--IS
s+3.
A is greater than the 2-bit input B. The
3 s+5
number of combinations for which the
3 2
(A) s +10s +34s+37 output is logic 1 is
(s + 1)(s + 4)(s + 5) (A) 4 (B) 6
s+3 (C) 8 (0) 10
(B)
(s + 1)(s + 4)(s + 5)
3 2
147. A series R-L-C circuit has R = 50 n,
-(5 +10s +345+37)
(C) L = 100 IlH and C = 1 IlF. The lower half
(5 + 1)(5 + 4)(5 + 5)
power frequency of the circuit is
-(s + 3) (A) 30.55 kHz (B) 3.055 kHz
(0)
(5 + 1)(s + 4)(5 + 5)
(C) 51.92 kHz (0) 1.92 kHz
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1111111111111111111111111111111111111111111111111111111111111111111111I1111011
148. How many 200 W/220 V incandescent 153. Which of the following is a representation
lamps connected in series would of inductive reactance?
consume the same total power as a single
(A) x,
= 1/27tfc' (B) XL =1/27tfl
(C) XL =27tfL (D) None of these
100 W/220 V incandescent lamp?
(A) not possible (B) 4 154. The losses of a 30 kV A, 2000/200 V
transformer are iron losses: 360 W
(C) 3 (D) 2
and full load copper losses: 480 W.
Efficiency of transformer at unity power
149. The RMS value of the voltage factor for full load is
(A) 94.3% (B) 95.3%
u(t) = 3 + 4 cos (3t) is
(C) 96.3% (D) 97.3%
(A) mv (B) 5V
(C) 7V (D) (3 + 22) V 155. What is the frequency of an ac current
i = 100 sin 628t?
(A) 50 Hz (B) 100 Hz
150. A 100 MVA, 13:5 kV, Y connected,
(C) 200 Hz (D) 628 Hz
3 phase, 60 Hz synchronous generator
is operating at the rated voltage. Base 156. In a system, the ratio of connected loads
current of this generator is and maximum demand is represented
(A) 4814 A (B) 8144 A through
(C) 1448 A (D) 4184 A (A) Digital factor
(B) Divergence factor
151. A field excitation of 20 A in a certain (C) Derivative factor
alternator results in an armature current (D) Diversity factor
of 400 A in short circuit and a terminal
voltage of 2000 V on open circuit. The 157. Kirchoff's first law states that
magnitude of the internal voltage drop (A) In a network, algebraic sum of emfs
within the machine at a load current of inside a closed loop is zero
200 A is (B) Algebraic sum of all the current
(A) 1 V (B) 10V meeting at a junction point is
(C) 100 V (D) 1000 V always zero
(C) Action and reactions are equal and
opposite
152. Two wattmeters, which are connected
(D) None of these
to measure the total power on a three-
phase system supplying a balanced
158. In a parallel circuit
load, read 10.5 kW and -2.5 kW,
(A) Current passing through each
respectively. The total power and the branch is different
power factor respectively, are (B) Voltage across each branch is
(A) 13.0 kW, 0.334 different
(B) 13.0 kW, 0.684 (C) Both current and voltages are
(C) 8.0 kW, 1 different across each branch
(D) 8.0 kW, 0.334 (D) Current across each branch is same
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MKG-XXIVrrECHAEF/1T/04 I 1111111111m 111111111111111111111111111111111111111111111111111111 mil 1111111111111I1111I11111111
159. In DC generators, the effect of the 165. If the angle between the plane of flux
magnetic field set up by the armature and plane of relative motion is 0°, then
current on the distribution of the flux the induced emf is
under main poles is known as
(A) Zero (B) Maximum
(A) Armature resistance
(C) Infinite (D) None of these
(B) Armature effect
(C) Armature reaction
(D) None of these 166. In wave type winding, the number of
parallel paths of armature winding is
160. Hysteresis loss is a type of
(A) P (B) 2
(A) Copper loss
(C) 4 (D) P/2
(B) Iron loss
(C) Mechanical loss
167. A voltmeter is instrument.
(D) Friction loss
(A) Recording (B) Indicating
161. Which of the following is not a measure
(C) Integrating (D) None of these
of electrical energy?
(A) Joule (B) Watt-sec
(C) J/sec (D) kWh
168. In the measuring instruments, under
equilibrium condition, controlling
162. The total number of lines of force existing torque (Tc) and deflecting torque (T d) are
in a particular magnetic field is called
(A) Both are equal
(A) Magnetic field (8) Magnetic flux
(B) Controlling torque is greater
(C) Magnetic pole (D) None of these
(C) Deflecting torque is greater
163. The direction of magnetic field due to
(D) None of these
straight current carrying conductor is
given by
(A) Flemming's left hand rule
169. The rotation of the disc without any current
(B) Right hand thumb rule through the current coil is called
(C) Flemming's right hand rule (A) Cogging (B) Crawling
(D) None of these (C) Creeping (D) None of these
164. The generator works on the principle of
(A) Statically induced emf 170. In a purely capacitive circuit, current leads
(B) Dynamically induced emf voltage by
(C) Mutual induction (A) 0 degree (B) 90 degree
(D) Kirchoff's law (C) 180 degree (D) 360 degree
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MKG-XXIVfTECHAEF/1T/04 I 1111111111m 1I11111111111111111111111111111111111111~1I111111111111111111111111111111111I1/111111
171. A fuse is a 177. The average emf per turn in a
(A) Current limiting device transformer is
(B) Protective device (A) 4f<1>m ' (B) 4.44f<1>m
(C) Voltage limiting device (C) 2f<1>m (0) f<1>m
(0) All of these 178. Synchronous speed of 3 phase induction
motor is given by
172. Two way control of lamp is also called (A) Ns = 120fP (B) Ns = 120P/f
____ wiring. (C) Ns = 120f/P (0) Ns = fP/120
(A) Staircase (B) Godown
179. A 3 phase, 6 pole, 50 Hz induction motor
(C) Flexible (0) None of these
has a slip of 1% at no load. Its no load
speed is
173. is an electromechanical device (A) 1000 rpm (B) 970 rpm
which makes and breaks the circuit in (C) 1100 rpm (0) 990 rpm
normal operation and disconnects the
circuit under the abnormal condition 180. In 4 point starter, the No Volt Release
when current exceeds a preset value. (NVR) coil is connected in the
(A) Fuse (B) MCB (A) Field circuit
(B) Armature circuit
(C) Relay (0) None of these
(C) Across the supply line through a
protective resistance
174. In a three phase system, the emfsare (0) Both (A) and (B)
(A) 30° apart (B) 60° apart
(C) 90° apart (0) 120° apart 181. A lightning stroke discharges impulse
current of 10 kA (peak) on a 400 kV
transmissionline havingsurge impedance
175. The line voltage is times the
of 250 Q. The magnitude of transient over
phase voltage in star connection.
voltagetravellingwaves in either direction
(A) 1 (B) Y2 assuming equal distributionfrom the point
(C) ..J3 (0) 1/..J3 of lightning stroke will be
(A) 1650 kV (B) 2900 kV
(C) 1250 kV (0) 2500 kV
176. Change in the terminal voltage of an
alternator when full load is removed, 182. A 12 pole dc generator has a simplex
keeping field excitation and speed wave wound armature containing
constant, divided by the rated terminal 144 coils of 10 turns each. Its flux per
voltage is called pole is 0.05 Wb and it is running at a
(A) Voltage induction speed of 200 r/min. Induced armature
voltage of this machine is
(B) Voltage regulation
(A) 28 V (B) 288 V
(C) Voltage division
(C) 2880 V (0) 396 V
(0) Voltage excitation
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MKG-XXIV rrECHAEF/1 T/04 1111I1I111111111111I111111111111111111111~llllllIlIllglllll1111111 11111IRI 1111111III 111111111111I
183. The slip of an induction motor normally 188. Candle power can be measured with
does not depend on the help of which of the following
(A) rotor speed instruments?
(B) synchronous speed (A) Ammeter (B) Voltmeter
(C) shaft torque (C) Diameter (D) Photometer
(D) core-loss component
189. Which of the following is not a mode of
heat transfer?
184. The is a discharge of electricity
(A) Conduction (B) Insulation
through a combination of ionized air and
(C) Convection (D) Radiation
vaporized conductor material.
(A) Fuse (B) Power arc
190. The locomotion in which the driving
(C) MCB (D) None of these force is obtained from electric motors
is called
185. The tendency of the salient poles to align (A) Electric power
themselves in the minimum reluctance (B) Electric traction
position is (C) Electric induction
(A) Synchronous reluctance (D) None of these
(B) Reluctance torque
(C) Explosion bonding 191. India's first passenger train ran in
(D) None of these between
(A) Bombay and Pune
186. is defined as the amount (B) Bombay and Thane
of luminous flux given out in a space (C) Delhi and Noida
represented by one unit solid angle by a (D) Bangalore and Chennai
source having an intensity of one candle
power in all directions. 192. If the op-amp in the figure is ideal, then
(A) Luminous intensity Vo is .
(B) Lumen c
(C) Light
(D) Candela V, sincot C
• I
• I
187. A 500 W lamp having MSCP(Mean V2 sincot C
Spherical Candle Power) of 800 is
suspended 3 m above the working plane.
Illumination directly below the lamp at (A) Zero
the working plane is approximately (B) (V1 - V2) sin cot
(A) 80lux (B) 891ux (C) -(V 1 + V2) sin cot
(C) 100 lux (D) 20 lux (D) (V1 + V2) sin cot
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Text of page 36
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MKG-XXIV ITECHAEF/1 T/04 111111111111111111 III IIUI 1111111 III 11111111 1111 11111 11111111111111111111111111111111111111111111111
193. A single phase transformer has emf 196. The skin effect of a conductor will
per turn having 2310/220 V, 50 Hz reduce as the t
transformer as 13 V. Then the estimated (A) diameter increases
(8) frequency increases
primary turns will be
(C) permeability of conductor material
(A) 189 turns (8) 179 turns increases
(C) 176 turns (0) 199 turns (0) resistivity of conductor material
increases
194. Which of the following is not a class of
permanent magnet material used for 197. According to law, the electric flux
passing through any closed surface is
electric machines?
equal to the total charge enclosed by
(A) Alnicos that surface.
(8) Ceramics (A) Coulomb's (8) Gauss's
(C) Flemming's (0) Kirchoff's
(C) Silicon
(0) Samarium cobalt
198. The capacitance per unit length and
the characteristic impedance of a
195. A 1000V OC supply has two t-core lossless transmission line are C and Zo
cables as its positive and negative respectively. The velocity of a travelling
leads : their insulation resistances to wave on the.transmission line is
earth are 4 MQ and 6 MQ respectively, (A) ZoC (8) 1I ZoC
(C) ZrJC (0) C/Zo
as shown in the figure. A voltmeter with
resistance 50 kQ is used to measure the
insulation of the cable. When connected 199. A current of 4 A passes through a
10 ohm resistor. The power developed
between the positive core and earth,
by the resistor is
then voltmeter reads
(A) 10 W (8) 100 W
1000 V ---+0 (C) 40 W (0) 160 W
4MQ 6MQ
200. The RMS value of the current and the
average value of the current are 0.707
and 0.637 times the maximum value of
the current respectively. Then the form
factor of alternating current is
(A) 8 V (8) 16 V (A) 1.41 (8) 0.9009
(C) 24 V (0) 40 V (C) 1 .11 (0) 1
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1111111111111I111I1111111111111111111111111111111111111111111111111111I1111111111111 ~IIIIIIIIIIIIII
MKG-XXIVITECHAEF/1 T/04
SPACE FOR ROUGH WORK
~~~~~
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1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111 MKG-XXIV fTECHAEF/1 T/04
SPACE FOR ROUGH WORK
~~~~~
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Text of page 40
M K G- XXIV fTE CHAE F11T104 ' IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII~IIIIIIIIIIIIIIIIII~IIIIIIIIIIIIIIIIIIIIIIII
IMPORTANT INSTRUCTIONS TO CANDIDATES
3urh~cu(i ~ ~ q~"R4~i ~
13. This booklet contains 40 pages. 13. ~ ~ if 40 ~ ~ I
14. Directions : Each question or incomplete 14. ~ :~ ~ ~ ~ ~ ~ ~ ~
statement is followed by four alternative 'qR '3'ffi: ~ ~ Cfi'(H ~ ~ ~ I~ Gm
suggested answers or completions. In each if ~
case, you are required to select the one that . M ~ q;)~ ~ \jj) ~ CflTmft '3'ffi:
correctly answers the question or completes the ~ ~ Cfi'(H q;) ~ ~ ~ ~ '3'ffi:~ if
statement and blacken (e) appropriate circle ~ ln~ ICflI{ l.9RA, B, C <n 0 q;);fR;rr <n CfiTffi
A, B, C or 0 by Blue / Black Ball-Point Pen ~-~ ~ ~ Cfilffi (e) "Cfl"Hf ~ I (<folCSIIRrn
aqainst the question concerned in the Answer 3'¥OI"H~cmlcfi .c:b-n~lffi TIlm<fiR ~ -::rrn
Sheet. (For V.H. candidates corresponding I~I!, ~."
circle will be blackened by the scribe) CfilFfT~~)
15. Mark your answer by shading the appropriate 15. ~ ~ ~ BJlf.'r ~ ~ <fiT Rl'15iCR ~ 311:RT
circle against each question. The circle
~ ~ I~ eN ~ ~ ~ ~ Rl'15iFchd ~ I
should be shaded completely without leaving
any space. The correct method of shading is Rl'15iFchd Cfif.f <fiT ~ otICflr ~ ~ ll<:rr ~ I
given below.
-"'---,
I I ~~~~
I ~~~~
I ~ q;) 31lHT '3'ffi:Ul10i'i4Cfl "ffiq ~ ~ ~
I The Candidate must mark his/her response
after careful consideration. ~~~I
I
I 16. There is only one correct answer to each 16. ~ ~ CflT~ ~ m mft '3'ffi: ~ I ~
I question. You should blacken (e) the circle of ~~ ~A, B, c -n D~ ln~ICfll(rm
I the appropriate column, viz., A, B, Cor D. If
____ .J
q;) Cfilffi (e) ~ ~ I~ 31rcr fcfim ~ ~ ~
you blacken (e) more than one circle against
anyone question, the answer will be treated ~ ~ 31fuCl"l1 n~ ICflR l.9Rq;) ~ (e) it 31TtJCfiT
as wrong. '3m: lJffii 11RT ~ I
17. In case of any discrepancy between the 17. ~ fcI:;Bt ~ ~ ~ CI'4T ~ ~ if ~
English and Hindi versions of any question, ~~it~~q;)mmft~\ifTWn I
the English version will be treated as final/
authentic.
18. Use the space for rough work given in the 18. ~~~~~~'q;l;if~~~CflT
Question Booklet only and not on the Answer m~ I '3'ffi:~"Ql:~~';f~ I
Sheet.
19. You are NOT required to mark your answers 19. ~~~~~~am~~~1
in this Booklet All answers must be indicated ~~~~if~~1
in the Answer Sheet only.
Go through instructions given in Page No.1 (Facing Page)
_ -40-Official key not published for this paper.
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Source: Delhi Subordinate Services Selection Board. Question paper published by Delhi Subordinate Services Selection Board.