Electrical Engineering MCQ Questions and Answers

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Q31
The amplitude of current of full wave rectified sinusoidal wave is 80 A, its average value will be
  • A 25.44A
  • B 80A
  • C 40A
  • D 56.56A
Answer: Option A
Q32
Find the total current supplied to the lamp rated 100w .when supply voltage is 200 v.
  • A 1.75A
  • B 2A
  • C 0.5A
  • D 1A
Answer: Option C
Q33
The power factor of a inductive circuit is
  • A Lagging
  • B Leading
  • C Zero lagging
  • D Unity
Answer: Option A
Q34
The power factor of a purely capacitive circuit is always
  • A Lagging
  • B Leading
  • C Unity
  • D Zero lagging
Answer: Option B
Q35
The overall circuit power factor of a RLC series circuit is found to be 0.898 lagging. The nature of the resultant circuit is
  • A Resistive
  • B Inductive
  • C Capacitive
  • D None of these
Answer: Option B
Q36
The maximum, rms and average value of a periodic current wave form is 100 A, 64.42A and 57.5A, respectively. The peak factor of this wave is
  • A 0.644
  • B 1.552
  • C 1.12
  • D None of these
Answer: Option B
Q37
In a parallel resistance circuit
  • A Power is same in all resistance
  • B Current is same in all resistance
  • C Voltage is same in all resistance
  • D Resistances are same
Answer: Option C

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