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The current rating of a fuse is 5A. The fusing current will be

2.5 A
1 A
5 A
more than 5A

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Series capacitors are used to

compensate for line inductive reactance
improve line voltage
None of these
compensate for line capacitive reactance

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For the same power, the least size is of

vaccum circuit breaker
air-blast circuit breaker
oil circuit breaker
sf6 circuit breaker

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In a circuit breaker the time duration from the instant of the fault to extinction of arc is known as

operation time
clearing time
lag time
lead time

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A.C. network analyzer is used to solve problems of

Load flow and short-circuit
Load flow, short-circuit and stability
Load flow and stability
Load flow

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Which of the following circuit breakers is prefered for EHT applications ?

low oil circuit breaker
air break circuit breaker
Sf6 CB
bulk oil circuit breaker

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