Synchronous Motors A synchronous motor runs at speed ranging from ______ None of the listed here 1800 to 3600 rpm 150 to 1800 rpm 3600 to 6000 rpm None of the listed here 1800 to 3600 rpm 150 to 1800 rpm 3600 to 6000 rpm ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors For reciprocating compressor, the synchronous motor is designed to have pull in torque of about ______ times the full load torque. 2 0.5 6 5 2 0.5 6 5 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is ______ stator voltage. Directly proportional to square of Invesely proportional to Directly proportional to Independent of Directly proportional to square of Invesely proportional to Directly proportional to Independent of ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the magnitude of stator back emf depends on _____ Speed of the rotor Dc excitation only Both the speed and rotor flux Load on the motor Speed of the rotor Dc excitation only Both the speed and rotor flux Load on the motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Most of the synchronous motors are _______ power factor metors. 0.8 lagging 0.8 leading 0.5 leading Unity 0.8 lagging 0.8 leading 0.5 leading Unity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor is generally ______ times its full-load torque. 5 to 10 0.5 6 to 9 1.25 to 3.5 5 to 10 0.5 6 to 9 1.25 to 3.5 ANSWER DOWNLOAD EXAMIANS APP
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