Synchronous Motors The speed of a synchronous motor Increases as the load increases None of the listed here Always remains constant Decreases as the load decreases Increases as the load increases None of the listed here Always remains constant Decreases as the load decreases ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short circuit test on synchronous motor is usually about One hour One minute One second None of the listed here One hour One minute One second None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The efficiency of a properly designed synchronous motor will usually fall in range 85 to 95% 75 to 80% 60 to 70% 99 to 99.5% 85 to 95% 75 to 80% 60 to 70% 99 to 99.5% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the maximum power developed depends on all of the following except supply voltage maximum value of coupling angle direction of rotation rotor excitation supply voltage maximum value of coupling angle direction of rotation rotor excitation ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor runs at only one speed because it ______ Is a doubly fed machine None of the listed here Has a damper winding Has no losses Is a doubly fed machine None of the listed here Has a damper winding Has no losses ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor, the rotor copper loss are met by ______ Supply lines Motor input Dc source Armature input Supply lines Motor input Dc source Armature input ANSWER DOWNLOAD EXAMIANS APP
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