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Electrician
Electrician Set-2
Transmission and Distribution
6

Circuit Breakers and Relays MCQ with Answers

6) Which type of load is protected by G? series MCB?

Ovens

Geysers

Air conditioners

General lighting systems

Answer is:

Air conditioners

Which type of load is protected by G? series MCB?

Circuit Breakers and Relays MCQ with Answers

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Related Circuit Breakers and Relays MCQ with Answers

7) Which type of relay is used in both A.C and D.C supply?

Reed relay

Impulse relay

Thermal relay

Clapper-type armature relay

Answer is:

Impulse relay

8) Which circuit breaker is used as a switch and protective device in the domestic wiring circuit?

Air circuit breaker

Miniature circuit breaker

Moulded case circuit breaker

Earth Leakage circuit breaker

Answer is:

Miniature circuit breaker

9) What is the purpose of trip coil used in circuit breakers?

Easy operation

Remote operation

Accurate operation

Emergency operation

Answer is:

Remote operation

10) What is the function of relay to the breaking operation of circuit breaker in control circuit?

Sensing the fault quantities

Analysing the condition of breaker

Controlling the Speed in case of fault

Interpreting the fault situation to operate breaker

Answer is:

Interpreting the fault situation to operate breaker

Circuit Breakers and Relays MCQ with Answers

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