Three Phase Induction Motors An induction motor with 1000 r.p.m. speed will have 8 poles 6 poles 2 poles 4 poles 8 poles 6 poles 2 poles 4 poles 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. None of the listed here Two times Four times Equal to None of the listed here Two times Four times Equal to ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A high starting torque can be obtained in a 3phase induction motor by _______ Increasing rotor resistance None of the listed here Decreasing rotor resistance Increasing rotor reactance Increasing rotor resistance None of the listed here Decreasing rotor resistance Increasing rotor reactance 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? 1000 rpm 730 rpm 1440 rpm 2880 rpm 1000 rpm 730 rpm 1440 rpm 2880 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If an induction motor is running at slip S, then rotor output is ______ (1+S) × rotor input (1-S) × rotor input S × rotor input (S-1) × rotor input (1+S) × rotor input (1-S) × rotor input S × rotor input (S-1) × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor is so called because its operation depends on Self induction Mutual induction Eddy currents Hysteresis Self induction Mutual induction Eddy currents Hysteresis ANSWER DOWNLOAD EXAMIANS APP
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