Three Phase Induction Motors If a 4 pole induction motor has a synchronous speed of 1500 rpm, then supply frequency is _____ 25 Hz None of the listed here 50 Hz 60 Hz 25 Hz None of the listed here 50 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor of induction motor Always revolves in the direction opposite to stator flux Insufficient data Always revolves in the direction of stator flux None of the listed here Always revolves in the direction opposite to stator flux Insufficient data Always revolves in the direction of stator flux None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor at stand still resemble those of a transformer whose secondady is _______ 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 Open circuited ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The crawling in an induction motor is caused by Low voltage supply Improper design of machine High loads Harmonics developed in the rotor Low voltage supply Improper design of machine High loads Harmonics developed in the rotor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase induction motor is ________ A variable speed motor Very costly Essentially a constant speed motor Not easily maintainable A variable speed motor Very costly Essentially a constant speed motor Not easily maintainable ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Friction and windage loss of a 3 phase induction motor are Maximum at no load Minimum at no load Remains the same at all loads None of the listed here Maximum at no load Minimum at no load Remains the same at all loads None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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