Three Phase Induction Motors When a 3-phase induction motor is at no load, the slip is ______ Practically zero 1 0.2 0.5 Practically zero 1 0.2 0.5 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor at no load resemble those of a transformer whose secondady is _______ Short-circuited None of the listed here Open circuited Supplying a variable resistive load Short-circuited None of the listed here Open circuited Supplying a variable resistive load ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shape of the torque/slip curve of induction motor is Straight line Hyperbola Parabola Rectangular parabola Straight line Hyperbola Parabola Rectangular parabola ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a 3 phase induction motor, the rotor speed is _____ the synchronous speed. Equal to Smaller than None of the listed here Greater than Equal to Smaller than None of the listed here Greater than ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The synchronous speed of a 3-phase induction motor having 20 poles and connected to a 50 Hz source is _____ 1000 rpm 600 rpm 1200 rpm 300 rpm 1000 rpm 600 rpm 1200 rpm 300 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A high starting torque can be obtained in a 3phase induction motor by _______ 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 Increasing rotor reactance ANSWER DOWNLOAD EXAMIANS APP
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