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 Small Absent Infinity Large Small Absent ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors At starting of a double squirrel cage induction motor _______ None of the listed here Lower winding is more effective Outer cage winding has good pf Lower cage winding has low reactance None of the listed here Lower winding is more effective Outer cage winding has good pf Lower cage winding has low reactance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The full load slip of a 3-phase induction motor ranges from 10 to 20 % 2 to 5 % None of the listed here 20 to 30 % 10 to 20 % 2 to 5 % None of the listed here 20 to 30 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3 phase induction motor is running at a slip S, then approximate efficiency of the motor is ______ 1-S None of the listed here 1+S S-1 1-S None of the listed here 1+S S-1 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor is so called because its operation depends on Mutual induction Hysteresis Eddy currents Self induction Mutual induction Hysteresis Eddy currents Self induction ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The cogging of an induction motor can be avoided by Proper ventilation Using DOL starter Having number of rotor slots more or less than the number of stator slots Auto transformer starter Proper ventilation Using DOL starter Having number of rotor slots more or less than the number of stator slots Auto transformer starter ANSWER DOWNLOAD EXAMIANS APP
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