A direct on line starter is used: for starting motors___________?

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...

D.C. series motors are used______________?

A. where load is constant B. where load changes frequently C. where constant operating speed is needed D. in none of the above situations...

Buses, trains, trolleys, hoists, cranes require high starting torque and therefore make use of_____________?

A. D.C. series motor B. D.C. shunt motor C. induction motor D. all of above motors...

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...