SYNCHRONOUS MOTORS QUIZ

90°

45°

60°

120°

An inductor

A capacitor

A resistor

None of the listed here

Mild steel

Stainless steel

Chrome steel

Alcino

45°

60°

90°

120°

synchronous motor runs at synchronous speed

stator supply is relieved of responsibility of producing magnetic field

synchronous motor has large air gap

mechanical load on the motor can be adjusted

A series motor

An induction motor

An alternator

A rotary converter

By changing the load

By changing the supply frequency

By interchanging any two phases

By changing the applied voltage

only at synchronous speed

below or above synchronous speed

while over-excited

when under loaded

Is increased too much

Is decreased too much

Become zero

Remains unchanged

More than

None of the listed here

Less than

About the same as