The armature voltage control of D.C. motor provides_____________?

Related Mcqs:

What will happen if the back e.m.f. of a D.C. motor vanishes suddenly?

A. The motor will stop B. The motor will continue to run C. The armature may burn D. The motor will run noisy...

The ratio of starting torque to full-load torque is least in case of____________?

A. series motors B. shunt motors C. compound motors D. none of the above...

Buses, trains, trolleys, hoists, cranes require high starting torque and therefore make use of_____________?

A. D.C. series motor B. D.C. shunt motor C. induction motor D. all of above motors...

Which of the following motors one will choose to drive the rotary compressor ?

A. D.C. shunt motor B. D.C. series motor C. Universal motor D. Synchronous motor...

In variable speed motor___________?

A. a stronger commutating field is needed at low speed than at high speed B. a weaker commutating field is needed at low speed than at high speed C. same commutating field is needed at low speed than at high speed D. none of the above is correct...