Three Phase Induction Motors An induction motor with 1000 r.p.m. speed will have 2 poles 6 poles 8 poles 4 poles 2 poles 6 poles 8 poles 4 poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor is preferred to a dc motor because it _______ None of the listed here Provides fine speed control Has simple and rugged construction Provides high starting torque None of the listed here Provides fine speed control Has simple and rugged construction Provides high starting torque 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 _____ 25 Hz 60 Hz None of the listed here 50 Hz 25 Hz 60 Hz None of the listed here 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The magnetising current drawn by a 3 phase induction motor is about _______ of full load stator current. 5% 15 to 20 % 30 to 50% 10 to 15% 5% 15 to 20 % 30 to 50% 10 to 15% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The stator of a three phase induction motor produces _______ magnetic field. Alternating Rotating None of the listed here Steady Alternating Rotating None of the listed here Steady ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The direction of rotation of field in a 3 phase induction motor depends upon _____ Number of poles Supply frequency Magnitude of supply voltage Phase sequence of supply voltage Number of poles Supply frequency Magnitude of supply voltage Phase sequence of supply voltage ANSWER DOWNLOAD EXAMIANS APP
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