The torque developed by a 3-phase induction motor least depends on__________?

Related Mcqs:

Which of the following methods is easily applicable to control the speed of the squirrel-cage induction motor _____________?

A. By changing the number of stator poles B. Rotor rheostat control C. By operating two motors in cascade D. By injecting e.m.f. in the rotor circuit...

For which motor the speed can be controlled from rotor side ?

A. Squirrel-cage induction motor B. Slip-ring induction motor C. Both A. and (b) D. None of the above...

A pump induction motor is switched on to a supply 30% lower than its rated voltage. The pump runs. What will eventually happen ? It will____________?

A. stall after sometime B. stall immediately C. continue to run at lower speed without damage D. get heated and subsequently get damaged...

A change of 4% of supply voltage to an induction motor will produce a change of approximately ________?

A. 4% in the rotor torque B. 8% in the rotor torque C. 12% in the rotor torque D. 16% in the rotor torque...

Insertion of reactance in the rotor circuit_______?

A. reduces starting torque as well as maximum torque B. increases starting torque as well as maximum torque C. increases starting torque but maxi-mum torque remains unchanged D. increases starting torque but maxi-mum torque decreases...