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Electrician Set-2
Basic wiring practice
11

Basic wiring practice MCQ with Answers

11) Which type of circuit breaker is used above 100 A current rating?

Miniature Circuit Breaker (MCB)

Earth Leakage Circuit Breaker (ELCB)

Moulded Case Circuit Breaker (MCCB)

Residual Current Circuit Breaker (RCCB)

Answer is:

Moulded Case Circuit Breaker (MCCB)

Basic wiring practice MCQ with Answers

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12) What is the purpose of tin coating on copper fuse wire?

Withstand high temperature

Increase the fusing factor

Prevent oxidation of copper wire

Increase the mechanical strength

Answer is:

Prevent oxidation of copper wire

13) What is the name of the four insulated conductors group?

Pair

Core

Quad

Layer

Answer is:

Quad

14) How many two way switches are required in godown wiring circuit to control four lamps

2

3

4

5

Answer is:

3

15) Why tree system of wiring most suitable for multistoryed building?

Easy load balancing

Constant voltage distribution

Offers minimum voltage drop

Easy in fault finding with many fuses

Answer is:

Easy in fault finding with many fuses

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