Synchronous Motors The speed of a synchronous motor can be changed by varying _______ None of the listed here Mechanical load Field excitation Supply frequency None of the listed here Mechanical load Field excitation Supply frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor is generally ______ times its full-load torque. 1.25 to 3.5 0.5 6 to 9 5 to 10 1.25 to 3.5 0.5 6 to 9 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor copper losses, in a synchronous motor, are met by armature input motor input c. source supply lines armature input motor input c. source supply lines ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Synchronous capacitor is An over excited synchronous motor running without mechanical load An ordinary static capacitor bank None of the listed here An over excited synchronous motor driving mechanical load An over excited synchronous motor running without mechanical load An ordinary static capacitor bank None of the listed here An over excited synchronous motor driving mechanical load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The efficiency of a properly designed synchronous motor will usually fall in range 99 to 99.5% 85 to 95% 75 to 80% 60 to 70% 99 to 99.5% 85 to 95% 75 to 80% 60 to 70% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A rotary converter can also be run as a Dc shunt generator Dc series generator Synchronous motor Dc compound generator Dc shunt generator Dc series generator Synchronous motor Dc compound generator ANSWER DOWNLOAD EXAMIANS APP
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