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Electrician
Electrician Set-2
Wiring Installation and Earthing
20

Wiring Installation and Earthing MCQ with Answers

20) Which principle the earth resistance tester works?

Self induction

Mutual induction

Fall of potential method

Fleming?s left hand rule

Answer is:

Fall of potential method

Wiring Installation and Earthing MCQ with Answers

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Related Wiring Installation and Earthing MCQ with Answers

21) Why system earthing is different in utilization than equipment earthing?

It protects human only

It protects from all circuit faults

It is associated with current carrying

It is connected to the non current carrying metal work

Answer is:

It is associated with current carrying

22) What is the effect if a person receives a shock current of 20 mA?

No sensation

Painful shock

Heart convulsions

Become unconscious

Answer is:

Painful shock

23) Which electrical equipment L series type MCB's are used?

Geysers

Locomotives

Halogen lamps

Air conditioners

Answer is:

Geysers

Which electrical equipment L series type MCB's are used?

24) What is the megger reading in a dead short wiring installation?

0 M Ohm

1 M Ohm

500 M Ohm

Infinity

Answer is:

0 M Ohm

Wiring Installation and Earthing MCQ with Answers

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