Three Phase Induction Motors The frame of an induction motor is usually made of Silicon steel Cast iron Aluminium Bronze Silicon steel Cast iron Aluminium Bronze ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The direction of rotation of field in a 3 phase induction motor depends upon _____ Magnitude of supply voltage Number of poles Phase sequence of supply voltage Supply frequency Magnitude of supply voltage Number of poles Phase sequence of supply voltage Supply frequency 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 _____ 1200 rpm 1000 rpm 300 rpm 600 rpm 1200 rpm 1000 rpm 300 rpm 600 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The maximum torque of a 3-phase induction motor under running conditions is Directly proportional to rotor resistance Inveresly proportional to supply voltage inversely proportional to rotor reactance at standstill None of the listed here Directly proportional to rotor resistance Inveresly proportional to supply voltage inversely proportional to rotor reactance at standstill None of the listed here 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 _____ 60 Hz 50 Hz 25 Hz None of the listed here 60 Hz 50 Hz 25 Hz None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When a 3-phase induction motor is at no load, the slip is ______ 0.5 0.2 1 Practically zero 0.5 0.2 1 Practically zero ANSWER DOWNLOAD EXAMIANS APP
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