Three Phase Induction Motors The condition of induction motor at stand still resemble those of a transformer whose secondady is _______ Short circuited None of the listed here Open circuited Supplying a variable resistive load Short circuited None of the listed here Open circuited Supplying a variable resistive load ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3-phase induction motor is running at slip S, then rotor copper loss is equal to S × rotor input (1+S) × rotor input None of the listed here (1-S) × rotor input S × rotor input (1+S) × rotor input None of the listed here (1-S) × 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 Absent Large Small Infinity Absent Large Small ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a 3 phase induction motor, the rotor speed is _____ the synchronous speed. Greater than Equal to None of the listed here Smaller than Greater than Equal to None of the listed here Smaller than ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The injected e.m.f. in the rotor of induction motor must have Zero frequency High value for the satisfactory speed control The same frequency as the slip frequency The same phase as the rotor e.m.f. Zero frequency High value for the satisfactory speed control The same frequency as the slip frequency The same phase as the rotor e.m.f. ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a double squirrel cage induction motor, the outer cage winding has _______ High resistance Low resistance High inductance None of the listed here High resistance Low resistance High inductance None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS