[Solved] is DC motor and not an AC type?

McqMate

Q.	is DC motor and not an AC type?
A.	winding
B.	shaft
C.	commutator
D.	stator
Answer» C. commutator
Explanation: all other parts except brushes and commutator are same in ac machine when outer looks are only taken in consideration. commutator is used only in dc machine for providing mechanical rectification and not in ac machine.

960

0

Do you find this helpful?

1

View all MCQs in

Electrical Drives and Controls (EDC)

Discussion

No comments yet

Related MCQs

A 50 Hz, 4poles, a single phase induction motor is rotating in the clockwise direction at a speed of 1425 rpm. The slip of motor in the direction of rotation & opposite direction of the motor will be respectively.
An induction motor when started on load, it does not accelerate up to full speed but runs at 1/7th of the rated speed. The motor is said to be
An induction motor when started on load, it does not accelerate up to full speed but runs at 1/7th of the rated speed. The motor is said to be
motor. The maximum allowable current is 55 A and the minimum current is about 35 A. The armature resistance of the motor is 0.4 Ω. What will be the number of sections of starter resistance required?
A starter is required for a 220-V shunt motor. The maximum allowable current is 55 A and the minimum current is about 35 A. The armature resistance of the motor is 0.4 Ω. What will be the number of sections of starter resistance required?
An electric motor is having constant output power. So, motor will have a torque speed characteristic
starting in an induction motor as well as dc motor.
An 8-pole, 3-phase, 50 Hz induction motor is operating at a speed of 720 rpm. The frequency of the rotor current of the motor in Hz is
An electric motor is having constant output power. So, motor will have a torque speed characteristic
A starting resistance is inserted at the starting in an induction motor as well as dc motor.