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 magnetising current drawn by a 3 phase induction motor is about _______ of full load stator current. 5% 30 to 50% 15 to 20 % 10 to 15% 5% 30 to 50% 15 to 20 % 10 to 15% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A high starting torque can be obtained in a 3phase induction motor by _______ Increasing rotor resistance None of the listed here Decreasing rotor resistance Increasing rotor reactance Increasing rotor resistance None of the listed here Decreasing rotor resistance Increasing rotor reactance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The starting torque of a 3-phase induction motor is _______ supply voltage. Directly proportional to Independent of None of the listed here Directly proportional to sqaure of Directly proportional to Independent of None of the listed here Directly proportional to sqaure of ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the supply voltage of a 3-phase induction motor is increased two times, then torque is _______ Decreased four times Increased four times Decreased two times Increased two times Decreased four times Increased four times Decreased two times Increased two times ANSWER DOWNLOAD EXAMIANS APP
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