Three Phase Induction Motors The condition of induction motor at stand still resemble those of a transformer whose secondady is _______ None of the listed here Supplying a variable resistive load Open circuited Short circuited None of the listed here Supplying a variable resistive load Open circuited Short circuited 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 Absent Infinity Large Small Absent Infinity Large Small 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 _____ 300 rpm 600 rpm 1000 rpm 1200 rpm 300 rpm 600 rpm 1000 rpm 1200 rpm ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor with 1000 r.p.m. speed will have 8 poles 4 poles 2 poles 6 poles 8 poles 4 poles 2 poles 6 poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel-cage induction motor can be controlled by all of the following except Reducing supply voltage Changing supply frequency Changing number of poles Changing winding resistance Reducing supply voltage Changing supply frequency Changing number of poles Changing winding resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Slip rings are usually made of Aluminium Carbon Phospor bronze Copper Aluminium Carbon Phospor bronze Copper ANSWER DOWNLOAD EXAMIANS APP
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