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Electrician Set-1
Circuit Breakers
20

Circuit Breakers MCQ - Electrician (Set-1) with Answers

20) Which one of the following is not applicable to MCB ?

Tamper proof as they are sealed

Used for close excess current protection

Used for control as well as to protect the circuit

Used for coarse excess current protection

Answer is:

Used for coarse excess current protection

Which one of the following is not applicable to MCB ?

Circuit Breakers MCQ - Electrician (Set-1) with Answers

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Related Circuit Breakers MCQ - Electrician (Set-1) with Answers

21) Which device can be used as switch and as well as protective device ?

Triple pole iron clad switch

Intermediate switch

Miniature circuit breaker

Earth leakage circuit breaker

Answer is:

Miniature circuit breaker

22) ELCB stands for

Electrical Leakage Circuit Breaker

Earth Leakage Current Breaker

Earth Leakage Circuit Breaker

Electrical Line Circuit Breaker

Answer is:

Earth Leakage Circuit Breaker

23) Earth Leakage Circuit Breaker (ELCB) works on the principle of

over load current

short circuit current

residual current

neutral current

Answer is:

residual current

24) The ELCB expansion form is

Earth Leakage Circuit Breaker

Earth Leakage Control Breaker

Earth Leakage Current Breaker

Earth Leakage Component Breaker

Answer is:

Earth Leakage Circuit Breaker

Circuit Breakers MCQ - Electrician (Set-1) with Answers

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