Three Phase Induction Motors The torque developed in the cage induction motor with auto-starter is K2 × torque with direct switching K × torque with direct switching k2/torque with direct switching k/torque with direct switching K2 × torque with direct switching K × torque with direct switching k2/torque with direct switching k/torque with direct switching ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the rotor slots are made deeper, rotor resistance is ______ Increased under running conditions Increased at starting Decreased at starting None of the listed here Increased under running conditions Increased at starting Decreased at starting None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A wound rotor motor is mainly used in applications where ______ High starting torque is required Speed control is required Less costly motor is not required High rotor resistance is required during running High starting torque is required Speed control is required Less costly motor is not required High rotor resistance is required during running ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The starting torque of a squirrel cage induction motor is Slightly more than full load torque Low Negligible Same as full load torque Slightly more than full load torque Low Negligible Same as full load torque ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The power factor of an induction motor under no load conditions will be closer to 0.5 leading Unity 0.2 leading 0.2 lagging 0.5 leading Unity 0.2 leading 0.2 lagging ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel cage induction motor is changed by Cascade control Rheostatic control None of the listed here Pole changing Cascade control Rheostatic control None of the listed here Pole changing ANSWER DOWNLOAD EXAMIANS APP