32) A mechanism which is incorporated in the circuit breaker to switch off it at faulty condition is known as

spring press mechanism

trip mechanism

solenoid operated mechanism

air pressure operated mechanism

Answer is:

trip mechanism

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

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

33) In circuit breaker, the maximum power that a circuit breaker can safely interrupt under a fault is known as

maximum operating power

minimum operating power

breaking capacity

rupturing capacity

Answer is:

rupturing capacity

34) The rupturing capacity of circuit breakers is generally expressed in

mega volt ampere (MVA)

kilo volt ampere (KVA)

kilo ampere (KA)

volt ampere (VA)

Answer is:

mega volt ampere (MVA)

Explanation:

Rupturing capacity of a circuit breaker means the maximum power a circuit breaker can interrupt under a fault. It is usually expressed in Mega volt Ampere (MVA) and it is then the product of the rated breaking current in kilo amperes and rated voltage expressed in kilo volts.