Switch Gear The fault that imposes severest duty on the circuit breaker is line to line fault two lines to ground fault line to ground fault all three lines short-circuited line to line fault two lines to ground fault line to ground fault all three lines short-circuited ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always leading the arc current by 90° In phase with the arc current lagging the arc current by 90° None of these leading the arc current by 90° In phase with the arc current lagging the arc current by 90° None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to √3 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity √3 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity ANSWER DOWNLOAD EXAMIANS APP
Switch Gear protection of fuses is generally not used beyond 200 A 100 A 50 A 20 A 200 A 100 A 50 A 20 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse in a motor circuit provides protection against None of these open circuit, short-circuit and overload short-circuit and overload overload None of these open circuit, short-circuit and overload short-circuit and overload overload ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Series capacitors are used to compensate for line inductive reactance improve line voltage compensate for line capacitive reactance None of these compensate for line inductive reactance improve line voltage compensate for line capacitive reactance None of these ANSWER DOWNLOAD EXAMIANS APP
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