Approximately the efficiency of the rotor of the induction motor depen – McqOptions

MCQOPTIONS

1.	Approximately the efficiency of the rotor of the induction motor depends on the
A.	rotor speed
B.	synchronous speed
C.	rotor speed and synchronous speed
D.	magnetic field speed
Answer» D. magnetic field speed

Discussion

No Comment Found

Related MCQs

If the operating voltage of the induction motor is increased by twice while keeping the frequency of the operation constant. Then the new starting torque will be?
If the voltage and frequency of the induction machine is reduced to 50% of the operating region,the slip of the machine will be?
If the voltage of a three phase induction motor if increased to 200%, then the slip if the machine changes to _________
If the frequency is reduced by 50% for a 3-phase, 50 Hz induction motor having 4 poles. The slip at which the maximum torque occurs becomes _________
I. Maximum torque can be achieved by inserting an additional resistance at desired slip in the rotor. II. Maximum torque can be altered by adding the external resistance in the rotor.
A 3-phase induction motor had the maximum rated torque of 40 N-m while the load torque applied to it is 55 N-m.
An induction motor X operating at the slip of 3%. An induction motor Y operating at slip of 40%.
Approximately the efficiency of the rotor of the induction motor depends on the _________
The rotor of the slip ring induction motor is connected to an ac source and stator is short circuited. If the rotating magnetic field is rotates clockwise, the rotor rotates in _________
AN_INDUCTION_MOTOR_X_OPERATING_AT_THE_SLIP_OF_3%.?$