Switch Gear If the length of the arc in a circuit breaker increases, its resistance decreases remains same increases None of these decreases remains same increases None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Circuit breakers usually operate under sub-transient state of short circuit current steady state of short circuit current transient state of short circuit current after dc component has ceased sub-transient state of short circuit current steady state of short circuit current transient state of short circuit current after dc component has ceased ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Arc in a circuit breaker behaves as a resistance decreasing with voltage rise across the arc a resistance increasing with voltage rise across the arc an inductive reactance a capacitive reactance a resistance decreasing with voltage rise across the arc a resistance increasing with voltage rise across the arc an inductive reactance a capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear In a circuit breaker the time duration from the instant of the fault to extinction of arc is known as clearing time lead time lag time operation time clearing time lead time lag time operation time ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to 2.55 × symmetrical breaking capacity √3 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity √3 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The transient voltage that appears across the contacts at the instant of arc extinction is called peak voltage supply voltage restriking voltage recovery voltage peak voltage supply voltage restriking voltage recovery voltage ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS