If a D.C. series motor is operated on A.C. supply, it will________?
Ahave poor power factor
Bspark excessively
Call of the above
Dhave poor efficiency
Correct answer
C. all of the above
Explanation
The correct answer is all of the above.
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Study 110 Electrical Engineering MCQs with correct answers and explanations.
Correct answer
C. all of the above
Explanation
The correct answer is all of the above.
Correct answer
A. high starting torque
Explanation
The correct answer is high starting torque.
Correct answer
A. gearing
Explanation
The correct answer is gearing.
Correct answer
A. can be operated either on D.C. or A.C. supply at approximately the same speed and output
Explanation
The correct answer is can be operated either on D.C. or A.C. supply at approximately the same speed and output.
Correct answer
D. a single turn of heavy copper wire which is short-circuited and carries only induced current
Explanation
The correct answer is a single turn of heavy copper wire which is short-circuited and carries only induced current.
Correct answer
B. commutator
Explanation
The correct answer is commutator.
Correct answer
D. Hysteresis motor
Explanation
The correct answer is Hysteresis motor.
Correct answer
A. retentivity
Explanation
The correct answer is retentivity.
Correct answer
C. stator
Explanation
The correct answer is stator.
Correct answer
D. it develops hysteresis torque which is extremely steady both in amplitude and phase
Explanation
The correct answer is it develops hysteresis torque which is extremely steady both in amplitude and phase.