Synchronous Motors The duration of sudden short circuit test on synchronous motor is usually about One hour One minute None of the listed here One second One hour One minute None of the listed here One second ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The efficiency of a properly designed synchronous motor will usually fall in range 99 to 99.5% 75 to 80% 60 to 70% 85 to 95% 99 to 99.5% 75 to 80% 60 to 70% 85 to 95% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is a ______ motor. Variable pf None of the listed here Variable speed Singly fed Variable pf None of the listed here Variable speed Singly fed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ None of the listed here Is at standstill Approches synchronous speed Approches half synchronous speed None of the listed here Is at standstill Approches synchronous speed Approches half synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor working at leading power factor can be used as Mechanical synchronizer Phase advancer Noise generator Voltage booster Mechanical synchronizer Phase advancer Noise generator Voltage booster ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a unity pf synchronous motor is operated at a leading pf, it results in _______ More than rated rotor current None of the listed here More than rated horseppwer output Less than rated horsepower output More than rated rotor current None of the listed here More than rated horseppwer output Less than rated horsepower output ANSWER DOWNLOAD EXAMIANS APP
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