Three Phase Induction Motors A wound rotor motor is mainly used in applications where ______ High rotor resistance is required during running Less costly motor is not required High starting torque is required Speed control is required High rotor resistance is required during running Less costly motor is not required High starting torque is required Speed control is required ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The full load slip of a 3-phase induction motor ranges from 20 to 30 % 10 to 20 % None of the listed here 2 to 5 % 20 to 30 % 10 to 20 % None of the listed here 2 to 5 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The direction of rotation of field in a 3 phase induction motor depends upon _____ Number of poles Phase sequence of supply voltage Supply frequency Magnitude of supply voltage Number of poles Phase sequence of supply voltage Supply frequency Magnitude of supply voltage ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When a 3-phase induction motor is at no load, the slip is ______ 0.5 Practically zero 0.2 1 0.5 Practically zero 0.2 1 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase 440 v, 50 Hz induction motor has 4% slip. The frequency of rotor emf will be 2 Hz 20 Hz 50 Hz 200 Hz 2 Hz 20 Hz 50 Hz 200 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a squirrel cage induction motor, the number of rotor bars is generally ________ None of the listed here Prime number Equal to stator poles Even number None of the listed here Prime number Equal to stator poles Even number ANSWER DOWNLOAD EXAMIANS APP
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