101+ Electrical Engineering NTS MCqs with Answers | New Pattern (2021)

101+ Electrical Engineering NTS MCQS with Answers | New Pattern (2021)

Hey, Today in this article we are going to give you the 100 NTS Electrical Engineering MCQs with answers For jobs in 2021, These MCQs are taken from electrical engineering test of National Testing Service.

These NTS Electrical Engineering Mcqs will help you for the Preparation of Job Test,  Interview, and competitive exams etc. These Electrical Engineering NTS MCQs will help you to secure maximum marks in upcoming NTS Electrical engineering test.

Electrical Engineering NTS MCQs for Jobs in 2021 Pakistan

1. Which transformer side has a low cross-sectional area:

A) Primary Winding
B) Secondary Winding
C) High Voltage Winding
D) Low Voltage Winding

2. When two dices are thrown What is the probability of not appearing the same number on the dices?

A) 5/6
B) 1/6
C) 2/3
D) 1/3

3. linear differential transformer is which type of _______transducer?

A) Electromechanical
B) Inductive
C) Chemical
D) Piezoelectric

4. A moving iron ammeter coil has few turns of thick wire in order to have:

A) Low resistance
B) High sensitivity
C) Effective damping
D) Large scale

5. The field last as long as the current flowing in the wire

(A) Electric field
(B) Magnetic field
C) Gravitational Field
D) None of these

6. Data travel fastest in ______ Cable?

A) Unshielded Twisted Pair
B) Shielded Twisted Pair
C) Coaxial
D) Fiber Optics

7. The self-inductance of solenoid depends on:

A) Length
B) Cross-sectional area
C) Thickness of the conductor
D) All of the above

8. Power transformer transforms??

A) Power
B) Voltage
C) Current
D) Resistance

9. Maxwell bridge is used to measure______ ?

A) Resistance
B) Inductance
C) Capacitance
D) Frequency

10. Moving Coil ammeter can measure

A) AC current
B) DC Current
C) Eddy Current
D) Stray Current

11. Unit of potential difference?

A) Volt
B) Ampare
C) Ohm
D) Henry

12. Find Q when current is 0.2A in a period of 2 minutes

A) 13C
B) 18C
C) 24C
D) 29C

13. 25% is 150 then for the full cycle then the valve will be_____?

A) 200
B) 350
C) 500
D) 600

14. A digital signal is what in

A) Discrete in time
B) Discrete in amplitude
C) Discrete in neather time nor amplitude
D) Discrete in both amplitude and time

15. The unit of Electric Energy is

A) Volt Amp
B) KW
C) kWh
D) Joule

16. In DC motor which loss decreases with increase in load

A) Friction and Windage Loss
B) Core
C) Brush Contact Loss
D) None of these

17. A constant current transformer should not have

A) Moveable Secondary Winding
B) High Resistance
C) Primary and Secondary Winding Surrounding Core
D) Low resistance

18. In piston maximum temperature is at:

A) Ring Set
B) Gudgeon Pin
C) Top Sides
D) Top Centre

19. P = 3000KW, d = 30km transmission line voltage will be:

a) 11KV
b) 66kV
c) 33KV
d) 132KV

20. Coal which has lowest calorific value:

a) Steam coal
b) Bituminous
c) Lignite
d) Anthracite

21. Graphic representation between discharge and time is called:

a) Monograph
b) Hectograph
c) Topograph
d) Hydrograph

22. Coal from storage to the boiler is taken through_____?

a) Buckets
b) V-ballets
c) Trolleys
d) Manually

23. The main drawback of a feedback system is:

a) Inaccuracy
b) Inefficiency
c) Insensitivity
d) Instability

24. What does phase margin specify ______?

a) Absolute Stability
b) Relative Stability
c) Frequency response
d) None of these

25. Non-linearity caused by servomotor is due to:

a) Coulomb friction
b) Dead space
c) Saturation
d) Dissemination

26. In force-voltage analogy, Inertia is analogous to:

a) Capacitance
b) Inductance
c) Inverse of capacitance
d) Inverse of Inductance

27. Pole shoes of DC machine fastened to pole core by: 

a) Welding
b) Soldering
c) Steal Clamp
d) Counter Sunk

28. Brushes on commutator are shifted from GNP to:

a) To obtain the highest generated voltage
b) Avoid sparking
c) To increase generated efficiency
d) To produce sparking

29. admittance is reciprocal of:

a) Impedance
b) Capacitance
c) Inductance
d) Resistance

30. Power in AC is consumed by:

a) Inductor
b) Capacitor
c) Resistance
d) All

31. Negative maximum of cosine waveform is

a) 180 degree
b) 30 degree
c) 45 degree
d) 90 degree

32. RF chokes are air cored to:

 a) Keep frequency low
b) Keep inductive reactance low
c) To keep frequency high
d) To keep inductive reactance high

34. Instantaneous of sinusoidal AC current at 45 degrees is called_____?

a) Peak-peak
b) RMS
c) Peak current
d) Average

35. In a common base amplifier output voltage is taken from

a) Collector
b) Emitter
c) Base
d) both A & C

36. The form factor is the ratio of:

a) Avg to rms
b) Peak to rms
c) Rms to avg
d) Peak to avg

37. The process of AC to Dc conversion is called ______

A) Inversion
B) Clipping
C) Cyclo-Conversion
D) Rectification

38. A.C. servomotor resembles

(a) Two phase induction motor
(b) Three phase induction motor
(c) Direct current series motor
(d) Universal motor

39. A transfer function of a system is used to calculate which of the following?

(a) The order of the system
(b) The time constant
(c) The output for any given input
(d) The steady state gain

40. For constant voltage transmission, the voltage drop is compensated by installing

a) Synchronous motor
b)Capacitor
C) Inductor
d) All of these

41. Hydrogen is used for Cooling of large size generators, because:

a) It has the high thermal conductivity
b) It is light
c) It offers reduced fire risk
d) All of the above

42. In a transmission line following arc the distributed constraints

A) resistance and inductance
B) resistance, inductance and capacitance
C) resistance, inductance and capacitance, and short conductance
D) None of these

43. If a signal having different frequency and different sampling frequency are time division multiplexes then it is known as __________?

a) Pulse stuffing
b) Synchronous multiplexing
c) Asynchronous multiplexing
d) FDMA

44. Which of the following TV system is adopted in PAK

A) SECAM
B) NTSC
C) PAL
D) ADALAH

45. The differential transformer is a _________ device?

a) electromagnetic
b) electromechanical
c) electrostatic
d) None of these

46. the parabolic antenna is used in satellite tracking because it has:

a) good maneuverability
b) good front to back ratio.
c) high bandwidth
d) All of these

47. headphone and speaker are

A) Video input
B) Audio input
C) Audio output
D) None of these

48. heterodyne frequency shifter is also called.

a) Mixer
b) Frequency translator
c) Frequency shifter
d) Frequency multiplier

49. Which relay is used in long-distance transmission lines?

A) Mho relay
B) Impedance relay
C) Admittance relay
D) None of these.

50. When the signal is first compressed before modulation and decompressed after demodulation in order to achieve the same quantization level is called______?

a) Companding
b) Pre-emphasis
c) De-emphasis
d) Quantization

51. At Unity Power Factor, Armature Flux is??

A) Cross Magnetizing
B) Demagnetizing
C) Zero
D) None of these

52. In radio, receiver squelch circuit is used to:

a) Reduce RF interference
b) Catch weak signals
c) Reduce noise
d) Cutt off and to amplify between stations

53. the autocorrelation function is

a) An odd function in to
b) An even function in to
c) An exponential function in to
d) None of these

54. The probability density function of thermal noise is:

A) Binomial
B) Gaussian
c) Poisson
d) None of these

55. Correct for a three-term controller?

a) PID
b) PIC
c) PD
d) All of these

56. When the current in the light bulb decreases by 2%, its power decreases by _____?

a) 4%
b) 2%
c) 8%
d) 40%

57. The LTI (Linear Time Invariant) system can be completely characterized by

a) Ramp input
b) Sinusoidal input
c) Impulse response
d) Step input

58. Which meter is used a null detector in Wheatstone bridge

a) Ammeter
b) Voltmeter
c) Ohm-meter
d) Galvanometer

59. The fact that a conductor carries more current on the surface as compared to the core is known as:

a) Faraday’s effect
b) Ampere’s Effect
c) Corona
d) Skin effect

60. If the carrier of a 100% modulated AM wave is suppressed the percentage of Power

A) 50
b) 66.66
c) 100
D) 150

61. Burning material such as wood, paper, and textile constitute a:

a) Class A
b) Class B
c) Class C
d) Class D

62. If the height of the transmission towers is increased, which of the following parameters is likely to change?

a) Capacitance
b) Inductance
c) Resistance
d) No change

63. Execution of program instruction in a computer takes place in:

a) Ram
b) Memory
c) CPU
d) Monitor

64. If z transform lies in ROC then

A) System is stable
B) Inverse of system is stable
C) Both system and its inverse are unstable
D) Both system and its inverse are stable

65. A diode that has negative resistance characteristics is the

A) Schottky diode
B) Tunnel diode
C) Hot-carrier diode
D) Laser diode

66. Silicon atomic number is 14 its valency is

A)  =4
B) <4
C) >4
D) 7

67. Which bulb operates on the lowest power

A) Night bulb
B) Neon bulb
C) GLS bulb
D) Torch lamp

68. The channel of a JFET is between the

A. Gate and drain
B. Drain and source
C. Gate and source
D. Input and output

69. A moving iron ammeter coil has few turns of thick wire in order to have:

A. Low resistance
B. High sensitivity
C. Effective damping
D. Large scale

70. Solid grounding is used for voltages

a. above 220 kV
b. above 11 kV
c. below 660 V
d. below 115 V

71. Ac power is used for the transmission line to____________?

A) To minimize losses
B) To minimize cost
C) To get maximum power
D) None of these

72. A 0.05 MW is equal to ______KW

A) 5kw
B) 50kw
C) 500kw
D) 5000kw

73. 800mv is equal to…Volts.

A) 0.008v
B) 0.08V
C) 0.8V
D) 8V

74. Electrical lines of force about a negative charge are

A. Circular, anticlockwise
B. Circular, clockwise
C. Radial, inward
D. Radial, outward

75. A rectifier is a _____?

A. Bilateral device
B. Linear device
C. Non-linear device
D. Passive device

76. If we have two nodes A and B and Vab is the potential difference between these nodes then which node is called reference node

a. Node A
b. Node B
c. Ground Node
d. None of These

77. If current and voltage are out of phase by 90 degrees then power is _____?

A) Maximum
B) Minimum
C) ZERO
D) None of These

78. In AC circuit power is consumed by _____?

A) Resistance
B) Capacitance
C) Inductance
D) All of these

79. the principal of ……….can be used to analyze fault in power system network.

A. Thevniin
B. Norton
C. Jordon
D. Superposition

80. A _____ meter is used a null detector in Wheatstone bridge

A. Ammeter
B. Voltmeter
C. Galvanometer
D. None of these

81. In 3-phase 4-wire system, how many voltages are available?

a. Two
b. Three
c. Four
d. Nine

82. ______ is defined as the measure of an instrument by which it is error-free

A) Accuracy
B) Precision
C) Resolution
D) None of these

83. For single phase rotary converter, when the power factor is unity, the AC line to DC current ratio will be.

A) 1.4
B) 1.0
C) 0.707
D) 0.5

84. Rohtas Fort was built by?  Sher Shah Suri

85. The biggest market of Pakistan’s Imports and Exports is? USA

86. The first wife of Hazrat Mohammed (PBUH) was Hazrat Bibi khadeeja

87. To which Prophet the Zabur was revealed by Allah? Prophet Dawood (A.S)

88. Prophet Muhammad (PBUH) had how many sons? 3 Sons

89. Lyallpur is in? (Faisalabad)

90. Financial year of Pakistan starts from? 1st July

91. Which country won the Cricket World Cup in 1999? Australia

92. The largest Natural fresh Water Lake in the subcontinent is Keenjar Lake

93. Capital of Turkey? Ankara

94. Pakistan Islamic state (1956)

95. Suggestion to ditch a dig (Hazrat Salman)

96. The capital of Australia (Canberra)

97. Pakistan’s membership opposed in UNO by (Afghanistan)

98. National animal of Pakistan (Markhor)

99. Dia-mir Bhasha dam is located on which of the following river? River Indus

100. Sajan Jandal business tycoon visited Pakistan in April 2017