Less maintenance troubles are experienced in case of___________?

Related Mcqs:

The number of slip rings on a squirrel cage induction motor is usually____________?

A. two B. three C. four D. none...

The torque developed in the cage induction motor with autostarter is___________?

A. k/torque with direct switching B. K x torque with direct switching C. K2 x torque with direct switching D. k2/torque with direct switching...

The speed of a squirrel-cage induction motor can be controlled by all of the following except_____________?

A. changing supply frequency B. changing number of poles C. changing winding resistance D. reducing supply voltage...

The stating torque of the slip ring induction motor can be increased by adding__________?

A. external inductance to the rotor B. external resistance to the rotor C. external capacitance to the rotor D. both resistance and inductance to rotor...

Which motor is preferred for use in mines where explosive gases exist ?

A. Air motor B. Induction motor C. D.C. shunt motor D. Synchronous motor...