Armature reaction in dc motor results___________?

Related Mcqs:

The direction of rotation of a D.C. series motor can be changed by___________?

A. interchanging supply terminals B. interchanging field terminals C. either of A. and B. above D. None of the above...

The type of D.C. motor used for shears and punches is_____________?

A. shunt motor B. series motor C. differential compoutid D.C. motor D. cumulative compound D.C. motor...

For which of the following applications a D.C. motor is preferred over an A.C. motor ?

A. Low speed operation B. High speed operation C. Variable speed operation D. Fixed speed operation...

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

A. constant torque drive B. constant voltage drive C. constant current drive D. none of the above...

The condition for maximum efficiency for a D.C. generator is______________?

A. eddy current losses = stray losses B. hysteresis losses = eddy current losses C. copper losses = 0 D. variable losses = constant losses...