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

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

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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.