Three Phase Induction Motors Insertion of resistance in the rotor of an induction motor to develop a given torque Rotor current becomes zero Increases the rotor current Decreases the rotor current Rotor current remains same Rotor current becomes zero Increases the rotor current Decreases the rotor current Rotor current remains same ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Slip of an induction motor is negative when Rotor speed is more than the synchronous speed of the field and are in the same direction Magnetic field and rotor rotate in opposite direction None of these Rotor speed is less than the synchronous speed of the field and are in the same direction Rotor speed is more than the synchronous speed of the field and are in the same direction Magnetic field and rotor rotate in opposite direction None of these Rotor speed is less than the synchronous speed of the field and are in the same direction ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Which of the following component is usually fabricated out of silicon steel? None of these Stator core Shaft Bearings None of these Stator core Shaft Bearings ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel-cage induction motor can be controlled by all of the following except Changing supply frequency Reducing supply voltage Changing number of poles Changing winding resistance Changing supply frequency Reducing supply voltage Changing number of poles Changing winding resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors For the same kVA rating, the leakage flux in induction motor is _______ that of transformer. None of the listed here Less than About the same More than None of the listed here Less than About the same More than ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors At no load the rotor core loss of a 3 phase induction motor is Large None of the listed here Small Practically zero Large None of the listed here Small Practically zero ANSWER DOWNLOAD EXAMIANS APP
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