Synchronous Motors In order to to reverse the direction of a synchronous motor, _______ Reduce dc field excitation to zero Change supply frequency Interchange any two stator lines None of the listed here Reduce dc field excitation to zero Change supply frequency Interchange any two stator lines None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Most of the synchronous motors are _______ power factor metors. 0.8 leading 0.8 lagging Unity 0.5 leading 0.8 leading 0.8 lagging Unity 0.5 leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is ______ stator voltage. Directly proportional to square of Independent of Invesely proportional to Directly proportional to Directly proportional to square of Independent of Invesely proportional to Directly proportional to ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Hunting in a synchronous motor can not be due to Windage friction Variable supply frequency Variable load Variable frequency Windage friction Variable supply frequency Variable load Variable frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor of a synchronous motor is better than that of induction motor because mechanical load on the motor can be adjusted synchronous motor runs at synchronous speed synchronous motor has large air gap stator supply is relieved of responsibility of producing magnetic field mechanical load on the motor can be adjusted synchronous motor runs at synchronous speed synchronous motor has large air gap stator supply is relieved of responsibility of producing magnetic field ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor runs at speed ranging from ______ 1800 to 3600 rpm None of the listed here 3600 to 6000 rpm 150 to 1800 rpm 1800 to 3600 rpm None of the listed here 3600 to 6000 rpm 150 to 1800 rpm ANSWER DOWNLOAD EXAMIANS APP
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