Three Phase Induction Motors If an induction motor is running at slip S, then rotor output is ______ (1+S) × rotor input S × rotor input (1-S) × rotor input (S-1) × rotor input (1+S) × rotor input S × rotor input (1-S) × rotor input (S-1) × rotor input 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 Small Large Absent Infinity Small Large Absent 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. 15 to 20 % 5% 10 to 15% 30 to 50% 15 to 20 % 5% 10 to 15% 30 to 50% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor at stand still resemble those of a transformer whose secondady is _______ Short circuited Open circuited None of the listed here Supplying a variable resistive load Short circuited Open circuited None of the listed here Supplying a variable resistive load ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the frequency of 3-phase supply to the stator of a 3-phase induction motor is increased, then synchronous speed ______ Is decreased Is increased None of the listed here Remains unchanged Is decreased Is increased None of the listed here Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The complete circle diagram of induction motor can be drawn with the help of data found from Stator resistance test No-load test Blocked rotor test All of these Stator resistance test No-load test Blocked rotor test All of these ANSWER DOWNLOAD EXAMIANS APP
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