Three Phase Induction Motors The no load speed of an induction motor depends on 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 Both supply frequency and number of poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A wound rotor motor is mainly used in applications where ______ 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 High rotor resistance is required during running ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Reduced voltage starter can be used with Slip ring motor only but not with squirrel cage induction motor None of these Squirrel cage as well as slip ring induction motor Squirrel cage induction motor only but not with slip ring motor Slip ring motor only but not with squirrel cage induction motor None of these Squirrel cage as well as slip ring induction motor Squirrel cage induction motor only but not with slip ring motor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor of induction motor Always revolves in the direction of stator flux None of the listed here Always revolves in the direction opposite to stator flux Insufficient data Always revolves in the direction of stator flux None of the listed here Always revolves in the direction opposite to stator flux Insufficient data ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Insertion of resistance in the rotor of an induction motor to develop a given torque Rotor current remains same Rotor current becomes zero Decreases the rotor current Increases the rotor current Rotor current remains same Rotor current becomes zero Decreases the rotor current Increases the rotor current 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 number of poles Changing winding resistance Changing supply frequency Reducing supply voltage Changing number of poles Changing winding resistance Changing supply frequency Reducing supply voltage ANSWER DOWNLOAD EXAMIANS APP
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