Three Phase Induction Motors The starting torque of an induction motor is maximum when rotor resistance per phase is _____ rotor reactance / phase. Equal to Two times Four times None of the listed here Equal to Two times Four times None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The approximate efficiency of a 3-phase , 50 Hz, 4 pole induction motor running at 1350 rpm is ______ 40% None of the listed here 65% 90% 40% None of the listed here 65% 90% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A high starting torque can be obtained in a 3phase induction motor by _______ Increasing rotor reactance Decreasing rotor resistance None of the listed here Increasing rotor resistance Increasing rotor reactance Decreasing rotor resistance None of the listed here Increasing rotor resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel cage induction motor is changed by Cascade control None of the listed here Pole changing Rheostatic control Cascade control None of the listed here Pole changing Rheostatic control 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
Three Phase Induction Motors The shaft of induction motor is made of Flexible Hollow Stiff Any of the listed here Flexible Hollow Stiff Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS