Three Phase Induction Motors If the air gap between the rotor and stator of a 3-phase induction motor is increased, then_______ Leakage reactances are decreased No load current is decreased None of the listed here Leakage reactances are increased Leakage reactances are decreased No load current is decreased None of the listed here Leakage reactances are increased ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 4 pole induction motor has a synchronous speed of 1500 rpm, then supply frequency is _____ 50 Hz 25 Hz 60 Hz None of the listed here 50 Hz 25 Hz 60 Hz None of the listed here 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 40% 65% 90% None of the listed here 40% 65% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor with 1000 r.p.m. speed will have 2 poles 8 poles 4 poles 6 poles 2 poles 8 poles 4 poles 6 poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase induction motor is ________ Essentially a constant speed motor A variable speed motor Very costly Not easily maintainable Essentially a constant speed motor A variable speed motor Very costly Not easily maintainable ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Size of a high speed motor as compared to low speed motor for the same HP will be Same Bigger Smaller Any of the listed here Same Bigger Smaller Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
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