Three Phase Induction Motors An induction motor is so called because its operation depends on Self induction Eddy currents Mutual induction Hysteresis Self induction Eddy currents Mutual induction Hysteresis ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A wound rotor motor is mainly used in applications where ______ 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 High rotor resistance is required during running Less costly motor is not required High starting torque is required ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shape of the torque/slip curve of induction motor is Parabola Hyperbola Rectangular parabola Straight line Parabola Hyperbola Rectangular parabola Straight line ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The induction motor has lagging power factor during Starting only Both starting and operation Operation only None of the listed here Starting only Both starting and operation Operation only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel-cage induction motor can be controlled by all of the following except Changing supply frequency Changing number of poles Reducing supply voltage Changing winding resistance Changing supply frequency Changing number of poles Reducing supply voltage Changing winding resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 4 pole induction motor has a synchronous speed of 1500 rpm, then supply frequency is _____ None of the listed here 60 Hz 25 Hz 50 Hz None of the listed here 60 Hz 25 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
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