ENTRANCE TEST FOR POST GRADATE TRAINING AT CHASCENT AND KINPOE, 2013

SECTION-A (GENERAL)
1. The quantity 1 kg m/sec is equivalent to?
(A) 1 Newton (B) 1 Newton-Sec (C) 1 Newton/Sec (D) 1 Newton/m

2. Which of the following is a nucleon?

(A) A beta particle (B) An electron (C) A proton (D) A positron

3. Small rockets are used to make tiny adjustments in the speed of satellites. One such
rocket has a thrust of 50.0 N. If it is fired to change the velocity of a 75,000-kg spacecraft by
45 cm/s, how long should it be fired?
(A) 18.8 min (B) 9.4 min (C) 22 min (D) 11 min

4. The speed of sound in air changes depending on?

(A) Volume (B) Pressure (C) Wind (D) Temperature

5. 6.28x103 J of heat is supplied to water of a certain mass at temperature of 4C. As a

result, the temperature of water rises to 7C. If the specific heat of water is 4186 J/kgC, how
much water was heated
(A) 0.5 Kg (B) 0.75 Kg (C) 1.5 Kg (D) 2 Kg

6. The bases and heights of a cylinder and a cone are the same. The volume of the cylinder
is V cm3. What is the approximate volume of the cone in mm3?
(A) 3V (B) 1/9 V (C) 1/3 V (D) 333 V

7. A baby was born on February 29 th 2012. How many days will there be before he has
another birthday on February 29th?
(A) 365 (B) 366 (C) 1460 (D) 1461

8. Manchester is located in?

(A) France (B) England (C) Belgium (D) Switzerland

9. When was SAARC founded?

(A) 1982 A.D. (B) 1983 A.D. (C) 1984 A.D. (D) 1985 A.D.

10. If A and B be two matrices such that B = A -1, then which of the following may not be
true?
(A) A. B-1 = A (B) Both A and B are square matrices
(C) |A| = |B| =1 (D) A x B = B x A

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 ENTRANCE TEST FOR POST GRADATE TRAINING AT CHASCENT AND KINPOE, 2013

11. The diameter of a van tire is 64.8 cm. A stone is stuck in the tread of the right rear tire.
What is the approximate magnitude of the stone's angular velocity if the van is traveling at
2.92 m/s?
(A) 3 rad/sec (B) 6 rad/sec (C) 9 rad/sec (D) 12 rad/sec

12. If , then what is the value of ?

(A) (B) (C) (D)

13. I've been living in America ___ I was five years old?
(A) when (B) until (C) since (D) for

14. Who designed Pakistan’s national flag?

(A) Jagannath Azad (B) Ameer-ud-din Khidwai
(C) Hafeez Jallundhari (D) Abdul Rab Nishtar

15. Which network protocol is used to send e-mail?

(A) FTP (B) SSH (C) POP3 (D) SMTP

16. Two objects A & B have same kinetic energy. Linear momentum of A is double of that of
B. The ratio of mass of A to mass of B is?
(A) 2 (B) 1/2 (C) 4 (D) 1/4

17. A bag contains 2 red, 4 blue and 2 green balls. If 2 balls are drawn at random, the
probability that both of the balls will be of same colour is?
(A) 5/28 (B) 2/7 (C) 3/7 (D) 3/14

18. A job (such as lifting an object) is done slowly and an identical job is done quickly. Both
jobs require the same amount of ____________ but different amounts of __________
(A) Work, Energy (B) Energy, Work (C) Work, Power (D) Power, Work

19. Farah’s cell phone plan included 500 anytime minutes. When she wanted to get a new
plan, she was offered a 20% increase in minutes for the same price of Rs. 500. After a six
month trial period, the wireless company would decrease the anytime minutes 20%. How
many minutes would be on her plan after the six months trial?
(A) 400 min. (B) 480 min. (C) 500 min, (D) 600 min.

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 ENTRANCE TEST FOR POST GRADATE TRAINING AT CHASCENT AND KINPOE, 2013

20. Forty people at a gathering shook hands with each other exactly once. The number of
handshakes took placed was?
(A) 1600 (B) 1560 (C) 1520 (D) 1480

21. The differential equation representing the family of curves is?

dy 1 1 dy 1
(A) = 2- (B) dx =
( 1 + ln x )
2
dx x ln x
dy ( 1 - ln x ) dy ln x
(C) = (D) dx =
( 1 - ln x )
2
dx x2

22. The chemical properties of matter comes mostly from its:

(A) Neutrons (B) Valence electrons (C) Protons (D) Nucleons

23. If a planet takes about 11.9 h to rotate about its axis, what is the planet's angular speed in
rad/s?
(A) 1.47 x 10-4 (B) 14.7 x 10-4 (C) 147 x 10-4 (D) 1.47 x 10-3

�x5 �
24. The value of lim � �is
x �� 5 x
� �
(A) 1 (B) -1 (C) 0 (D) None of these

25. The process by which a solid changes into its liquid state at a certain fixed temperature by
the absorption of heat is called
(A) Fusion (B) Liquefaction (C) Vaporization (D) Solidification

26. A turtle is walking to the left along a ruler which is being pulled to the right. The speed of
the ruler is greater than the speed of the turtle walking along the ruler. The speed of the turtle
with respect to the ground is?
(A) Greater than the speed of the ruler (B) Less than the speed of the ruler
(C) Same as the speed of the ruler (D) Zero

27. Which planet is termed as the red planet?

(A) Jupiter (B) Mars
(C) Saturn (D) Mercury

28. Z15A, V13C, ? , N9G, J7I.

(A) T11D (B) R11F (C) R11E (D) T11E

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 ENTRANCE TEST FOR POST GRADATE TRAINING AT CHASCENT AND KINPOE, 2013

29. If A + B means A is the brother of B; A – B means A is the sister of B and A x B means A

is the father of B. Which of the following means that C is the son of M?

(A) M-N x C-F (B) F+C+N x M (C) M x N- C+F (D) N+M –F x C

30. Which particle is missing in the nuclear reaction

(A) Electron (B) Positron (C) Neutron (D) Alpha

SECTION-B (ELECTRICAL)
31. A 100 μA ammeter has an internal resistance of 100 W. Which of the following figures in
nearer to the shunt resistance in ohms to extend its range to measure 500 μA?
(A) 20.0 (B) 22.2 (C) 25.0 (D) 50.0

32. For the circuit shown in the given Figure, considering ideal voltage and current sources,
the current flowing through 2 ohm resistance is
(A) 2 A
(B) 1 A
(C) 0 A
(D) Not enough data to calculate

33. The rms value of the resultant current in a wire which carries a dc current of 10 A and a
sinusoidal alternating current of 20 A peak value is
(A) 14.1 A (B) 17.3 A (C) 22.4 A (D) 30.0 A

34. In the case of an unbalanced star-connected load supplied from an unbalanced 3- φ , 3

wire system, load currents will consist of
(A) Only Positive sequence components
(B) Only Negative sequence components
(C) Both positive-and negative sequence components only
(D) zero-sequence components

35. (chap 1)If a 220 V, 5 kW heater is used on 110 V supply, heat produced by it will be
(A) 250 W (B) 10 kW (C) 125 W (D) 20 W

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 ENTRANCE TEST FOR POST GRADATE TRAINING AT CHASCENT AND KINPOE, 2013

36. Two ac sources feed a common variable resistive load as shown in the given figure.
Under the maximum power transfer condition, the power absorbed by the load resistance R L
is
(A) 2200 W
(B) 1250 W
(C) 1000 W
(D) 625 W

37. Two similar electric charges of 1 C each are placed 1 m apart in air. Force of repulsion
between them would be nearly
(A) 1 N (B) 9 x 109 N (C) 4 N (D) 8.854 x 1012 N

38. The capacitance of a capacitor is NOT influenced by

(A) plate thickness (B) plate area
(C) plate separation (D) nature of the dielectric

39. A coil of 1000 turns is wound on a core. A current of 1 A flowing through the coil creates
a core flux of 1 mWb. The energy stored in Joules in the magnetic field is
(A) 0.25 (B) 0.5 (C) 1 (D) 2

40. For the circuit shown in the given figure, the current through L and the voltage across C 2
are respectively
(A) zero and RI
(B) I and zero
(C) zero and zero
(D) I and RI

41. The capacity of a lead-acid cell does NOT depend on its

(A) rate of charge (B) rate of discharge
(C) temperature (D) quantity of active material

42. If e1 = A sin t and e2 = B sin (t- ), then

(A) e1 lags e2 by  (B) e2 leads e1 by 
(C) e2 lags e1 by  (D) e1 is in phase with e2

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 ENTRANCE TEST FOR POST GRADATE TRAINING AT CHASCENT AND KINPOE, 2013

43. Which of the following figures is nearest to reading of the voltmeter in the given figure in
volts?
(A) 80
(B) 120
(C) 200
(D) 0

44. The reactance offered by a capacitor to alternating current of frequency 50 Hz is 10

ohms. If frequency is increased to 100 Hz reactance will become
(A) 20 ohms (B) 5 ohms (C) 2.5 ohms (D) 40 ohms

45. The total impedance Z (in ohms) of the circuit shown is

(A) 6 + j0
(B) 7 + j0
(C) 0 + j8
(D) 6 + j8

46. In a simple high-pass RC filter, if the value of capacitance is doubled, the cutoff
frequency is
(A) Doubled (B) Halved (C) Tripled (D) Quadrupled

47. The transient current in a loss-free L-C circuit when excited from an ac source is a sine
wave of the type
(D) critically
(A) over damped (B) un damped (C) under damped
damped

48. (dc generator)The armature of a d.c. generator has a 2-layer lap-winding housed in 72
slots with six conductors per slot. What is the minimum number of commutator bars required
for the armature?
(A) 72 (B) 432 (C) 216 (D) 36

49. (dc generator)In d.c. generators, armature reaction is produced actually by

(A) its field current (B) armature conductors
(C) field pole winding (D) load current in armature

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 ENTRANCE TEST FOR POST GRADATE TRAINING AT CHASCENT AND KINPOE, 2013

50. (Chap DC Generator)The critical resistance of the d.c. generator is the resistance of
(A) armature (B) field (C) load (D) brushes

51. Which of the following statements is WRONG for a DC generator?

(A) Commutation can be improved by using interpoles
(B) Commutation can be improved by using carbon brushed in place of copper brushes
(C) Commutation can be improved by shifting brush axis the direction of armature
reaction
(D) Commutation can be improved by using copper brushes instead of carbon brushes

52. (Chap DC Generator)Voltage regulation of an ideal DC generator is

(A) Infinite (B) Negative (C) Zero (D) Positive

53. (dc motor)A d.c. motor develops a torque of 200 N-m at 25 rps. What torque in N-m will
it develop at 20 rps?
(A) 200 (B) 160 (C) 250 (D) 128

54. (Chap DC Motor)The d.c. series motor should never be switched on at no load because
(A) the field current is zero (B) The machine does not pick up
(C) The speed becomes dangerously high (D) It will take too long to accelerate

55. A transformer has negative voltage regulation when its load power factor is
(A) zero (B) unity (C) leading (D) lagging

56. The all-day efficiency of a transformer depends primarily on

(A) Only its copper loss (B) Only its iron losses
(C) Only on ambient temperature (D) the amount and the duration of load

57. Which of the following statements is WRONG statements concerning parallel operation
of transformers?
(A) transformers must have equal voltage ratings
(B) transformers must have same ratio of transformation
(C) transformers must be operated at the same frequency
(D) transformers must have equal kVA ratings

58. If maximum torque of an induction motor is 200 units at a slip of 12%, the torque at 6%
slip would (in the same units) be?
(A) 100 (B) 160 (C) 40 (D) 50

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 ENTRANCE TEST FOR POST GRADATE TRAINING AT CHASCENT AND KINPOE, 2013

59. A 3-phase, 4-pole, 50-Hz induction motor runs at a speed of 1440 r.p.m. What would be
the speed of the rotating magnetic field produced by the rotor in rpm with respect to the
rotor?
(A) 1500 (B) 1440 (C) 60 (D) 0

60. As load power factor of an alternator becomes more leading, the value of generated
voltage required to give rated terminal voltage
(A) increases (B) remains unchanged
(C) decreases (D) varies with rotor speed

61. Two identical alternators are running in parallel and carry equal loads. If excitation of one
alternator is increased without changing power of the prime mover, which of the following
statement is correct about the generator?
(A) kVAR supplied by it would decrease
(B) its power factor will increase
(C) kVA supplied by it would decrease
(D) it will keep supplying almost the same load

62. A synchronous motor connected to infinite busbars has at constant full-load, 100%
excitation and unity p.f. If only excitation is increased, the power factor will
(A) go lagging (B) go leading
(C) get a value more than 1 (D) both (B) and (C)

63. The V-curves of a synchronous motor show relationship between

(A) excitation current and back e.m.f. (B) field current and p.f.
(C) d.c. field current and a.c. armature current (D) armature current and supply voltage

64. Corona occurs between two transmission wires when they

(A) are closely-spaced (B) are widely-spaced
(C) have high potential difference (D) carry d.c. power.

65. The phenomenon of rise in voltage at the receiving end of the open-circuited or lightly
loaded line is called the
(A) Seeback effect (B) Ferranti effect (C) Raman effect (D) none of these

66. An induction motor has relatively high power factor at

(A) rated speed (B) no load (C) 20 percent load (D) near full load

67. Illumination of one lumen per square meter is called

(A) flux (B) lux (C) foot candle (D) candela

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 ENTRANCE TEST FOR POST GRADATE TRAINING AT CHASCENT AND KINPOE, 2013

68. By using bundled conductors, which of the following is reduced?

(A) Power loss due to corona (B) Capacitance of the circuit
(C) Inductance of the circuit (D) All of these

69. Load shedding is done to

(A) improve power factor (B) run the equipment efficiently
(C) repair the machine (D) reduce peak demand

70. The circuit below shows a 3-phase half-wave rectifier. The source is a symmetrical, 3-
phase four-wire system. The line-to-line voltage of the source is 100 V. The supply frequency
is 400 Hz. The ripple frequency at the output is
(A) 400 Hz.
(B) 800 Hz.
(C) 1200 Hz.
(D) 2400 Hz.

71. Which of the following statements is WRONG for an SCR?

(A) An SCR can be turned OFF by interrupting its anode current
(B) An SCR can be turned OFF by reversing polarity of its anode- cathode voltage
(C) An SCR can be turned OFF by low-current dropout (reducing current beyond a limit)
(D) An SCR can be turned OFF by reducing gate pulse to zero voltage

72. An ideal OP-AMP has the following values of its open loop gain, input resistance and
output resistance respectively
(A) - ∞, ∞, 0 (B) 0, 0, ∞ (C) - ∞, 0, ∞ (D) - ∞, 0, 0

73. The 2's complement of binary number 1000 is

(A) 0111 (B) 0101 (C) 1000 (D) 0001

74. The maximum value of torque that a synchronous motor, can develop without losing its
synchronism, is known as
(A) breaking torque (B) synchronizing torque
(C) pull out torque (D) slip torque

75. The damping ratio of a system having the characteristic equation s2+2s+8=0 is
(A) 0.353 (B) 0.330 (C) 0.300 (D) 0.250

76. Which of the following statement is WRONG?

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 ENTRANCE TEST FOR POST GRADATE TRAINING AT CHASCENT AND KINPOE, 2013

(A) Blocked rotor test of a 3 phase induction motor helps to find short-circuit current
with normal voltage
(B) Blocked rotor test of a 3 phase induction motor helps to find short-circuit power
factor
(C) Blocked rotor test of a 3 phase induction motor helps to find fixed losses
(D) Blocked rotor test of a 3 phase induction motor helps to find motor resistance as
referred to stator

77. If the driving power from the prime-mover driving an alternator is lost but the alternator
remains connected to the supply network and the field supply also remains on. The alternator
will
(A) Start to smoke and burn at once
(B) Behave as an induction motor but will rotate in opposite direction
(C) Behave as a synchronous motor and will rotate in the same direction
(D) Behave as a synchronous motor but will rotate in a reverse direction to that
corresponding to generator action

78. In a three phase half wave rectifier, each diode conducts for
(A) Half of the cycle (B) One third of the cycle
(C) One fourth of the cycle (D) One sixth of the cycle

10
79. If the transfer function of a first-order system is G ( s ) = then the time constant of
1 + 2s
the system is
(A) 10 second (B) 1/10 second (C) 2 second (D) 0.5 second

80. What would happen if a power transformer designed for operation on 50 Hz (frequency)
were connected to a 500 Hz (frequency) source of the same voltage?
(A) Current will be too much high
(B) Transformer may start to smoke and burn
(C) Eddy Current and Hysteresis loss will be excessive
(D) No effect

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