Three Phase Induction Motors The condition of induction motor at no load resemble those of a transformer whose secondady is _______ Open circuited Supplying a variable resistive load None of the listed here Short-circuited Open circuited Supplying a variable resistive load None of the listed here Short-circuited ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The starting torque of an induction motor is maximum when rotor resistance per phase is _____ rotor reactance / phase. Four times Equal to Two times None of the listed here Four times Equal to Two times None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3 phase induction motor is running at a slip S, then approximate efficiency of the motor is ______ S-1 1+S None of the listed here 1-S S-1 1+S None of the listed here 1-S ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The frequency of rotor current in a 6-pole , 50 Hz, 3-phase induction motor running at 950 rpm is 1.5 Hz 2.5 Hz 0.05 Hz 5 Hz 1.5 Hz 2.5 Hz 0.05 Hz 5 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor is so called because its operation depends on Hysteresis Mutual induction Eddy currents Self induction Hysteresis Mutual induction Eddy currents Self induction ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The crawling in an induction motor is caused by High loads Harmonics developed in the rotor Improper design of machine Low voltage supply High loads Harmonics developed in the rotor Improper design of machine Low voltage supply ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS