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Study 122 Electrical Engineering MCQs with correct answers and explanations.
Correct answer
B. all of the above
Explanation
The correct answer is all of the above.
Correct answer
D. when load varies
Explanation
The correct answer is when load varies.
Correct answer
A. rotor excitation
Explanation
The correct answer is rotor excitation.
Correct answer
C. current rating
Explanation
The correct answer is current rating.
Correct answer
C. its power factor may be varied at will
Explanation
The correct answer is its power factor may be varied at will.
Correct answer
C. A.C. synchronous motor
Explanation
The correct answer is A.C. synchronous motor.
Correct answer
D. pull-in torque
Explanation
The correct answer is pull-in torque.
Correct answer
C. increase in both armature current and power factor angle
Explanation
The correct answer is increase in both armature current and power factor angle.
Correct answer
C. None of the above
Explanation
The correct answer is None of the above.
Correct answer
C. d.c. shunt machines
Explanation
The correct answer is d.c. shunt machines.