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ITI
Wireman
Wireman Set-1
Earthing
3

Earthing MCQ with Answers

3) What is the minimum length of the earth electrode pipe?

1.5 metre

2 metre

2.25 metre

2.5 metre

Answer is:

2.5 metre

Earthing MCQ with Answers

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Related Earthing MCQ with Answers

4) What is the minimum size of the copper plate electrode?

30cm to 30cm

60cm X 40cm

60cm X 50cm

60cm X 60cm

Answer is:

60cm X 60cm

5) What will happen to the value of earth resistance, if length of the earth pipe is increased?

Remain same

Increases

Decreases

Infinity

Answer is:

Decreases

6) Which type of holder is to be earthed as per BIS?

Angle holder

Bracket holder

Battern lamp holder

Pendant lamp holder

Answer is:

Bracket holder

7) What is size of earth conductor used in power load?

8 SWG

10 SWG

14 SWG

20 SWG

Answer is:

8 SWG

Earthing MCQ with Answers

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