Synchronous Motors The back emf in the stator of a synchronous motor depends on None of the listed here Rotor excitation Rotor speed Flux density None of the listed here Rotor excitation Rotor speed Flux density ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors An important advantage of a synchronous motor over wound round induction motor is that 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 its speed may be controlled more easily its power factor may be varied at will None of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can operate at Lagging power factor only Lagging, leading and unity power factors Unity power factor only Leading power factor Lagging power factor only Lagging, leading and unity power factors Unity power factor only Leading power factor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor will always stop when Supply voltage fluctuates Supply voltage frequency changes Excitation winding gets disconnected Load in motor varies Supply voltage fluctuates Supply voltage frequency changes Excitation winding gets disconnected Load in motor varies ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor correction capability of a loaded synchronous motor _____ with the increases in mechanical load. None of the listed here Increases Remains unchanged Decreases None of the listed here Increases Remains unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Change of D.C. excitation of a synchronous motor changes Motor speed Applied voltage of the motor Any of the above Power factor of power drawn by the motor Motor speed Applied voltage of the motor Any of the above Power factor of power drawn by the motor ANSWER DOWNLOAD EXAMIANS APP
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