SSC JE Electrical Important MCQ Part 1
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SSC JE Electrical Important MCQ PDF Part 1
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1.Hopkinson’s test is conducted at
A) No load
B) Low load
C) Full load
D) Part load
Answer : C
2.How many receptacles can be on a 20-amp circuit
A) 30
B) 40
C) 50
D) 10
Answer : D
SSC JE Electrical Important MCQ Part 1
3.The magnetic flux which does not follow the particularly intended path in a magnetic circuit is called
A) Leakage flux
B) Magnetic flux
C) Flux
D) Flux density
Answer : A
4.High voltage DC (HVDC) transmission is mainly used for
A) Eliminating reactive power requirement in the operation
B) Minimizing harmonics at the converter stations
C) Interconnecting two systems with the same nominal frequency
D) Bulk power transmission over very long distances
Answer : D
5.AWG stands for
A) Ampacity Wire Gauge
B) American Wire Gauge
C) Actual Wire Gauge
D) Ambient Wire Gauge
Answer : B
SSC JE Electrical Important MCQ Part 1
6.Which of the following are DC windings
A) Double layered winding
B) Fractional slot winding
C) Single layered winding
D) Lap winding
Answer : D
7.The speed of a DC machine can be measured by a/an-
A) Tachometer
B) Ammeter
C) Anemometer
D) Voltmeter
Answer : A
SSC JE Electrical Important MCQ Part 1
8.Distribution lines in India generally use
A) RCC poles
B) Wooden poles
C) Steel tower
D) Iron poles
Answer : A
9.A 20 metre length of cable has a cross-sectional area of 1 mm² and a resistance of 4 Ohm.Calculate the conductivity of the cable.
A) 4 MS/m
B) 5 MS/m
C) 12 MS/m
D) 10 MS/m
Answer Key : B
SSC JE Electrical Important MCQ Part 1
10.What is the thermal conductivity of nichrome
A) 15.5 W·m−1·K−1
B) 11.3 W·m−1·K−1
C) 25 W·m−1·K−1
D) 20.7 W·m−1·K−1
Answer : B
11.______________ is defined as weber-turns in one coil due to one ampere current in the other.
A) Coefficient of mutual inductance
B) Load coefficient
C) Temperature coefficient
D) Energy efficiency coefficient
Answer : A
SSC JE Electrical Important MCQ Part 1
12.The r.m.s. value of pure cosine function is
A) 0.5 of peak value
B) Zero
C) Same as peak value
D) 0.707 of peak value
Answer : D
13.The form factor of a 220 V, 50 Hz AC waveform is
A) 1.11
B) 0.85
C) 0.95
D) 1.41
Answer : A
14.Which of the following indicates black and green wires respectively in house wiring
A) Phase and neutral
B) Phase and earth
C) Earth and neutral
D) Neutral and earth
Answer : D
SSC JE Electrical Important MCQ Part 1
15.The process by which impurities are added to a pure semiconductor is called
A) Drift
B) Diffusing
C) Doping
D) Mixing
Answer : C
16.Who discovered that a current-carrying conductor would move when placed in a magnetic field
A) Nikola Tesla
B) Gustav Kirchhoff
C) Michael Faraday
D) Andre Ampere
Answer : C
17.What is the unit of illumination
A) Henry
B) Lux
C) Decibel
D) Coulomb
Answer : B
SSC JE Electrical Important MCQ Part 1
18.Mutual inductance is measured in
A) Ampere
B) Volt
C) Henry
D) Ohm
Answer : C
19.DC shunt motors are commonly used in
A) Cranes
B) Lathe machines
C) Electric traction
D) Elevators
Answer : B
20.The starting resistance of a DC motor is usually
A) Around 1000 Ohms
B) Low
C) Around 100 Ohms
D) Very large
Answer : B
SSC JE Electrical Important MCQ Part 1
