Electrical Engineering MCQs on Synchronous Motor
Contents
- 1 While starting a synchronous motor by induction motor action, the field winding is generally
- 2 A synchronous machine with large air gap has
- 3 If field circuit of an unloaded salient pole synchronous motor gets suddenly open-circuited then
- 4 The motor that is non self-starting
- 5 A rotary converter can also be run as a
While starting a synchronous motor by induction motor action, the field winding is generally
While starting a synchronous motor by induction motor action, the field winding is generally
- Connected to D.C. supply
- Kept open-circuited
- Short-circuited by low resistance
- None of these
Correct answer: 3. Short-circuited by low resistance
A synchronous machine with large air gap has
A synchronous machine with large air gap has
- A higher synchronizing power which makes the machine less sensitive to load variations
- A higher value of stability limit
- A small value of inherent regulation
- All of these
Correct answer: 4. All of these
If field circuit of an unloaded salient pole synchronous motor gets suddenly open-circuited then
If field circuit of an unloaded salient pole synchronous motor gets suddenly open-circuited then
- It continues to run at the same speed
- It runs at a slower speed
- It runs at a very high speed
- The motor stops
Correct answer: 4. The motor stops
The motor that is non self-starting
The motor that is non self-starting
- DC series motor
- Squirrel cage induction motor
- Synchronous motor
- Wound round induction motor
Correct answer: 3. Synchronous motor
A rotary converter can also be run as a
A rotary converter can also be run as a
- DC Compound motor
- DC Series motor
- DC Shunt motor
- Synchronous motor
Correct answer: 4. Synchronous motor