Synchronous Motors An important advantage of a synchronous motor over wound round induction motor is that its speed may be controlled more easily its power factor may be varied at will None of these its speed is independent of supply frequency its speed may be controlled more easily its power factor may be varied at will None of these its speed is independent of supply frequency ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor will always stop when Load in motor varies Excitation winding gets disconnected Supply voltage frequency changes Supply voltage fluctuates Load in motor varies Excitation winding gets disconnected Supply voltage frequency changes Supply voltage fluctuates ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The pull out torque of a synchronous motor will ______ as the field excitation is increased. Decrease Increase Remain unchanged None of the listed here Decrease Increase Remain unchanged None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The standard full-load power factor ratings for synchronous motors are zero or 0.8 leading unity or zero unity or 0.8 lagging unity or 0.8 leading zero or 0.8 leading unity or zero unity or 0.8 lagging unity or 0.8 leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The size of a synchronous motor is determined by its _____ kW rating kVAR rating None of the listed here kVA rating kW rating kVAR rating None of the listed here kVA rating ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed of a synchronous motor can be changed by varying _______ None of the listed here Supply frequency Field excitation Mechanical load None of the listed here Supply frequency Field excitation Mechanical load ANSWER DOWNLOAD EXAMIANS APP
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