Three Phase Induction Motors If a 4 pole induction motor has a synchronous speed of 1500 rpm, then supply frequency is _____ None of the listed here 50 Hz 25 Hz 60 Hz None of the listed here 50 Hz 25 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The good power factor of an induction motor can be achieved if the average flux density in the air gap is Small Absent Infinity Large Small Absent Infinity Large 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
Three Phase Induction Motors The shaft of induction motor is made of Stiff Any of the listed here Hollow Flexible Stiff Any of the listed here Hollow Flexible ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor on load resemble those of a transformer whose secondady is _______ Supplying a variable resistive load None of the listed here Open circuited Short circuited Supplying a variable resistive load None of the listed here Open circuited Short circuited ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the supply voltage of a 3-phase induction motor is increased two times, then torque is _______ Decreased four times Decreased two times Increased four times Increased two times Decreased four times Decreased two times Increased four times Increased two times ANSWER DOWNLOAD EXAMIANS APP
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