Which of the following law/rule can he used to determine the direction of rotation of D.C. motor ?

Related Mcqs:

Which D.C. motor will be preferred for machine tools ?

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

The power mentioned on the name plate of an electric motor indicates____________?

A. the power drawn in kW B. the power drawn in kVA C. the gross power D. the output power available at the shaft...

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...

In Ward-Leonard control the lower limit of speed is imposed by________?

A. residual magnetism of the generator B. core losses of motor C. mechanical losses of motor and generator together D. all of the above...

D.C. motor is to drive a load which has certain minimum value for most of the time and some peak value for short duration. We will select the________________?

A. series motor B. shunt motor C. compound motor D. any of the above...