During rheostat braking of D.C. series motors_____________?

Related Mcqs:

If a D.C. motor is to be selected for conveyors, which rriotor would be preferred ?

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

By looking at which part of the motor, it can be easily confirmed that a particular motor is D.C. motor?

A. Frame B. Shaft C. Commutator D. Stator...

Speed control by Ward Leonard method gives uniform speed variation_____________?

A. in one direction B. in both directions C. below normal speed only D. above normal speed only...

The hysteresis loss in a D.C. machine least depends on____________?

A. Frequency of magnetic reversals B. Maximum value of flux density C. Volume and grade of iron D. Rate of flow of ventilating air...

With the increase in temperature, the speed of DC shunt motor____________?

A. decreases. B. increases C. remain same D. none of the above...