Three Phase Induction Motors If a 3-phase induction motor is running at slip S, then rotor copper loss is equal to S × rotor input None of the listed here (1+S) × rotor input (1-S) × rotor input S × rotor input None of the listed here (1+S) × rotor input (1-S) × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shape of the torque/slip curve of induction motor is Parabola Straight line Hyperbola Rectangular parabola Parabola Straight line Hyperbola Rectangular parabola 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 ______ 90% None of the listed here 65% 40% 90% None of the listed here 65% 40% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The starting torque of a squirrel cage induction motor is Negligible Low Slightly more than full load torque Same as full load torque Negligible Low Slightly more than full load torque Same as full load torque ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor winding of a 3phase wound rotor induction motor is generally _______ connected. Star Partly star and partly delta None of the listed here Delta Star Partly star and partly delta None of the listed here Delta ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors 5 H.P., 50Hz, 3-phase, 440 V, induction motors are available for the following r.p.m. Which motor will be the costliest? 1440 rpm 2880 rpm 730 rpm 1000 rpm 1440 rpm 2880 rpm 730 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
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