Synchronous Motors In a synchronous motor, the forced vibrations will be maximum when driving A reciprocating air compressor A centrifugal blower Any of the listed here A centrifugal pump A reciprocating air compressor A centrifugal blower Any of the listed here A centrifugal pump ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short circuit test on synchronous motor is usually about One minute One second None of the listed here One hour One minute One second None of the listed here One hour ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Power factor of a synchronous motor is unity when None of the listed here The armature current is zero The armature current is maximum The armature current is minimum None of the listed here The armature current is zero The armature current is maximum The armature current is minimum ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The size of a synchronous motor decreases with the increase in Horse power rating Flux density All of the listed here Speed Horse power rating Flux density All of the listed here Speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Damper winding in a synchronous motor________ Improve pf of the motor Increases hunting of the motor Reduces windage losses Serves to start the motor Improve pf of the motor Increases hunting of the motor Reduces windage losses Serves to start the motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The direction of rotation of a synchronous motor can be reversed by reversing, Polarity of rotor poles None of the listed here Current to field winding Supply phase sequence Polarity of rotor poles None of the listed here Current to field winding Supply phase sequence ANSWER DOWNLOAD EXAMIANS APP
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