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

Related Mcqs:

If the field of a D.C. shunt motor gets opened while motor is running______________?

A. the speed of motor will be reduced % B. the armature current will reduce C. the motor will attain dangerously high speed 1 D. the motor will continue to nuvat constant speed...

If a D.C. shunt motor is working at no load and if shunt field circuit suddenly opens__________?

A. nothing will happen to the motor B. this will make armature to take heavy current, possibly burning it C. this will result in excessive speed, possibly destroying armature due to excessive centrifugal stresses D. motor will run at very slow speed...

Which of the following motor has the poorest speed regulation ?

A. Shunt motor B. Series motor C. Differential compound motor D. Cumulative compound motor...

The losses occurring in a D.C. generator are given below. Which loss is likely to have highest proportion at rated load of the generator ?

A. hysteresis loss B. field copper loss C. armature copper loss D. eddy current loss...

When the armature of a D.C. motor rotates, e.m.f. induced is___________?

A. self-induced e.m.f. B. mutually induced e.m.f. C. back e.m.f D. none of the above...