Synchronous Motors If the field of a synchronous motor is underexcited, the power factor will be zero leading lagging unity zero leading lagging unity ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The size of a synchronous motor decreases with the increase in Speed All of the listed here Horse power rating Flux density Speed All of the listed here Horse power rating Flux density ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The angle between the rotor poles and stator poles, in a synchronous motor, is known as Angle of retardation Synchronising angle Torque angle Power factor angle Angle of retardation Synchronising angle Torque angle Power factor angle 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
Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 0° electrical 90° electrical 30° electrical 45° electrical 0° electrical 90° electrical 30° electrical 45° electrical ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor of synchronous motor is excited with direct current when the motor _____ Is at standstill Approches synchronous speed Approches half synchronous speed None of the listed here Is at standstill Approches synchronous speed Approches half synchronous speed None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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