Synchronous Motors In a synchronous motor, the forced vibrations will be maximum when driving A centrifugal pump A centrifugal blower A reciprocating air compressor Any of the listed here A centrifugal pump A centrifugal blower A reciprocating air compressor Any of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The armature current of a synchronous motor will be minimum for ______ power factor. Unity 0.8 leading None of the listed here 0.8 lagging Unity 0.8 leading None of the listed here 0.8 lagging ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If the synchronous motor, properly synchronised to the supply is running on no load and is having negligible loss then the stator current will be zero the stator current will be very high the back e.m.f. will be more than the supply voltage the stator current will be very small the stator current will be zero the stator current will be very high the back e.m.f. will be more than the supply voltage the stator current will be very small ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If a synchronous motor is operating at a supply frequency of 50 cycles/second, then, rotor revolves at ______ 100 cycles/second None of the listed here 25 cycles/ second 50 cycles/second 100 cycles/second None of the listed here 25 cycles/ second 50 cycles/second ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ Approches half synchronous speed Is at standstill Approches synchronous speed None of the listed here Approches half synchronous speed Is at standstill Approches synchronous speed None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The induced e.m.f. in a synchronous motor working on leading power factor will be more than the supply voltage less than the supply voltage None of these equal to the supply voltage more than the supply voltage less than the supply voltage None of these equal to the supply voltage ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS