21. |
In a lap winding, the dc machine number of conductors is 100, and number of parallel paths are 10. Find the average pitch
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Answer:
Option (a) |
22. |
Lap winding is preferred for which type of machines?
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Answer:
Option (c) |
23. |
Wave winding is preferred for which of the following rating?
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Answer:
Option (d) |
24. |
Equalizer rings are used in which of the following?
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Answer:
Option (a) |
25. |
In a 2 pole lap winding dc machine, the resistance of one conductor is 2Ω and the total number of conductors is 100. Find the total resistance1
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Answer:
Option (c) |
26. |
Dummy coils are used for
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Answer:
Option (c) |
27. |
A 4 pole lap wound dc generator has 4 brushes if one of the brush is damaged, what will be the change in V, I and P ratings
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Answer:
Option (d) |
28. |
For a dc machine shunt resistance and armature resistance values are
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Answer:
Option (b) |
29. |
Shunt field of DC generators consists of ___________ number of turns and _________ conductors respectively
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Answer:
Option (b) |
30. |
Series field consists of __________ number of turns and _________ conductors respectively
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Answer:
Option (c) |