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

Related Mcqs:

Which of the following component is usually fabricated out of silicon steel ?

A. Bearings B. Shaft C. Statorcore D. None of the above...

Stepless speed control of induction motor is possible by which of the following methods ?

A. e.m.f. injection in rotor eueuit B. Changing the number of poles C. Cascade operation D. None of the above...

The ‘crawling” in an induction motor is caused by___________?

A. high loads B. low voltage supply C. improper design of machine D. harmonics developed in the motor...

In a three-phase induction motor_______________?

A. iron losses in stator will be negligible as compared to that in rotor B. iron losses in motor will be neg¬ligible as compared to that in rotor C. iron losses in stator will be less than that in rotor D. iron losses in stator will be more than that in rotor...

The purpose of using short-circuit gear is___________?

A. to short circuit the rotor at slip rings B. to short circuit the starting resistances in the starter C. to short circuit the stator phase of motor to form star D. none of the above...