11. |
Ground resistance value for sensitive installations is
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Answer:
Option (a) |
12. |
Doubling the length of the ground electrode will cause resistance to
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Answer:
Option (d) |
13. |
The easiest method for earth resistance measurement
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Answer:
Option (c) |
14. |
Earth pit is filled with
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Answer:
Option (d) |
15. |
What is the specification of GI earth plate?
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Answer:
Option (d) |
16. |
What is the amount of charcoal and salt needed for GI Pipe earthing?
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Answer:
Option (c) |
17. |
Which IE rule is applicable to service mains?
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Answer:
Option (d) |
18. |
What is the diameter of the GI pipe through which the earth wire needs to be taken out?
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Answer:
Option (b) |
19. |
What should be the value of earthing resistance for large power stations?
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Answer:
Option (a) |
20. |
_________________earthing is used for transmission lines
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Answer:
Option (c) |