The starting torque of a three phase induction motor can be increased by__________?

Related Mcqs:

The shaft of an induction motor is made of_____________?

A. high speed steel B. stainless steel C. carbon steel D. cast iron...

In case the air gap in an induction motor is increased____________?

A. the magnetising current of the rotor will decrease B. the power factor will decrease C. speed of motor will increase D. the windage losses will increase...

If any two phases for an induction motor are interchanged_______?

A. the motor will run in reverse direction B. the motor will run at reduced speed C. the motor will not run D. the motor will burn...

Slip of an induction motor is negative when_____________?

A. magnetic field and rotor rotate in opposite direction B. rotor speed is less than the synchronous speed of the field and are in the same direction C. rotor speed is more than the synchronous speed of the field and are in the same direction D. none of the above...

A 500 kW, 3-phase, 440 volts, 50 Hz, A.C. induction motor has a speed of 960 r.p.m. on full load. The machine has 6 poles. The slip of the machine will be__________?

A. 0.01 B. 0.02 C. 0.03 D. 0.04...