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Electrical DC Motor Quiz #3
- 25 Questions (Selected Randomly)
- 25 Marks (1 Mark/Question)
- 25 Minutes of Time
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- Answered
- Review
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Question 1 of 25
1. Question
…… is used to start heavy loads.
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Question 2 of 25
2. Question
DC series motor is suitable for the …..
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Question 3 of 25
3. Question
In a vacuum cleaner, we generally use ….. motor.
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Question 4 of 25
4. Question
Which motor is used for the elevator?
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Question 5 of 25
5. Question
In DC motor, friction and winding loss depends on the …..
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Question 6 of 25
6. Question
Iron losses in a DC motor depend upon …..
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Question 7 of 25
7. Question
Excessive motor vibration is caused by …..
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Question 8 of 25
8. Question
Overheating of DC motor is often due to …..
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Question 9 of 25
9. Question
The hot bearing of DC motor may be caused by …..
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Question 10 of 25
10. Question
Which motor should not be used for centrifugal pumps?
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Question 11 of 25
11. Question
The resistance of the shunt field winding as compared to series field winding is …..
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Question 12 of 25
12. Question
….. is used to determine the direction of rotation of DC motor.
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Question 13 of 25
13. Question
Which part of DC motor can sustain maximum temperature rise?
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Question 14 of 25
14. Question
In small DC motor Up to 5 HP, the number of poles requires the …..
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Question 15 of 25
15. Question
When the DC motor is connected to AC supply then, what will happen?
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Question 16 of 25
16. Question
Which DC motor is preferred for machine tools?
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Question 17 of 25
17. Question
….. is not the function of pole shoe in DC motor.
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Question 18 of 25
18. Question
In DC motor, the function of the yoke is …..
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Question 19 of 25
19. Question
The Dummy coil function is to …..
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Question 20 of 25
20. Question
In DC motor, the diverter is used in …..
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Question 21 of 25
21. Question
When the speed of the DC motor is increases then, its armature current is to…..
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Question 22 of 25
22. Question
The most commonly used method of speed control of a DC motor is by varying the …..
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Question 23 of 25
23. Question
The direction of rotation of DC shunt motor can be reversed by interchanging …..
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Question 24 of 25
24. Question
….. motor never uses belt-connected load.
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Question 25 of 25
25. Question
A three-point starter is suitable for …..