Three Phase Induction Motors An induction motor is so called because its operation depends on Self induction Hysteresis Eddy currents Mutual induction Self induction Hysteresis Eddy currents Mutual induction ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Slip rings are usually made of Aluminium Carbon Copper Phospor bronze Aluminium Carbon Copper Phospor bronze ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When the rotor of a 3-phase induction motor is blocked, the slip is _____ 0.1 0.5 0 1 0.1 0.5 0 1 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. 5% 10 to 15% 30 to 50% 15 to 20 % 5% 10 to 15% 30 to 50% 15 to 20 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors For the same kVA rating, the leakage flux in induction motor is _______ that of transformer. None of the listed here More than Less than About the same None of the listed here More than Less than About the same ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The no load speed of an induction motor depends on Both supply frequency and number of poles The maximum flux/poles The number of its poles The supply frequency Both supply frequency and number of poles The maximum flux/poles The number of its poles The supply frequency ANSWER DOWNLOAD EXAMIANS APP
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