Three Phase Induction Motors If a 4 pole induction motor has a synchronous speed of 1500 rpm, then supply frequency is _____ 60 Hz 25 Hz 50 Hz None of the listed here 60 Hz 25 Hz 50 Hz None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Friction and windage loss of a 3 phase induction motor are Remains the same at all loads None of the listed here Minimum at no load Maximum at no load Remains the same at all loads None of the listed here Minimum at no load Maximum at no load ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shaft of an induction motor is made of Stainless steel Cast iron Carbon steel High speed steel Stainless steel Cast iron Carbon steel High speed steel ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The advantage of wound rotor motor is that _______ It is inexpensive External resistance can be inserted in the rotor circuit It requires less maintenance None of the listed here It is inexpensive External resistance can be inserted in the rotor circuit It requires less maintenance None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The good power factor of an induction motor can be achieved if the average flux density in the air gap is Infinity Large Absent Small Infinity Large Absent Small 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. Equal to Four times Two times None of the listed here Equal to Four times Two times None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS