# Synchronous Motor MCQ Part 2

Synchronous Motor MCQ Part 2.

Electrical Engineering MCQ questions on Synchronous motor.

## What is value of angle between induced voltage and supply voltage of synchronous motor under the running condition

What is value of angle between induced voltage and supply voltage of synchronous motor under the running condition:

1. 0 to 90 degrees
2. 90 to 180 degrees
3. 180 to 360 degrees
4. None of these

Correct answer: 90 to 180 degrees

## The higher the applied voltage in a synchronous motor

The higher the applied voltage in a synchronous motor:

1. The higher the stator flux
2. The lower the pull-in torque
3. Both of these
4. None of these

Correct answer: 3. Both of these

## If axis of field flux coincides with armature flux, then the synchronous machine

If axis of field flux coincides with armature flux, then the synchronous machine:

1. Start operating as generator
2. Will operate as synchronous motor
3. Is said to be floating

Correct answer: 3. Is said to be floating

## What is the correct relationship between rotor MMF and stator MMF in the synchronous motor

What is the correct relationship between rotor MMF and stator MMF in synchronous motor:

1. Rotor mmf and stator mmf are stationery with respect to each other
2. Rotor mmf is fater than stator mmf
3. Stator mmf is fater than rotor mmf

Correct answer: 1. Rotor mmf and stator mmf are stationery with respect to each other

## With an increase in excitation, the stability of synchronous motor

With an increase in excitation, the stability of synchronous motor:

1. Decreases
2. Increases
3. Remains the same