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________________?

Related Mcqs:

These days D.C. motors are widely used in____________?

A. pumping sets B. air compressors C. electric traction D. machine shops...

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...

If I2 be the armature current, then speed of a D.C. shunt motor is_______________?

A. independent of Ia B. proportional to la C. varies as (Ia) D. varies as la...

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...

If the load on a DC shunt motor is increases, its speed is slightly reduced due to______________?

A. increase in armature current B. increase in flux C. decrease in reactance D. decrease in back emf...