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Wireman Set-1
Domestic Wiring Practice
39

Domestic Wiring Practice MCQ with Answers

39) Which method is preferred to reduce the value of earth resistance?

By increasing the dia of pipe

Connecting number of earth electrode in parallel

By increasing the depth of earth pit

By connecting insulated cables

Answer is:

Connecting number of earth electrode in parallel

Domestic Wiring Practice MCQ with Answers

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Related Domestic Wiring Practice MCQ with Answers

40) Where system earthing is employed?

Commercial buildings

Industries

Generating station

Domestic buildings

Answer is:

Generating station

41) Where plate earthing is used?

Commercial building

Substations

Industries

Multistoried buildings

Answer is:

Substations

42) What is the permissible leakage current in any wiring installation as per IE rule?

Not exceed 1/50th part of full load current

Not exceed 1/500th part of full load current

Not exceed 1/5000th part of full load current

Not exceed 1/50000th part of full load current

Answer is:

Not exceed 1/5000th part of full load current

43) Which range of megger is to be used to test the insulation resistance in medium voltage wiring installation as per BIS-732?

500 Volt

1000 Volt

1500 Volt

2000 Volt

Answer is:

500 Volt

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