Switch Gear The single phasing relays are used for the protection of two phase motors only two single phase motors running in parallel single phase motors only three phase motors two phase motors only two single phase motors running in parallel single phase motors only three phase motors ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Arc in a circuit breaker behaves as an inductive reactance a capacitive reactance a resistance increasing with voltage rise across the arc a resistance decreasing with voltage rise across the arc an inductive reactance a capacitive reactance a resistance increasing with voltage rise across the arc a resistance decreasing with voltage rise across the arc ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Directional relay are based on flow of voltage wave current power All of these voltage wave current power All of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Wave trap is used to trap waves of power frequencies higher frequencies entering generator or transformer units either of the above None of these power frequencies higher frequencies entering generator or transformer units either of the above None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To limit short-circuit current in a power system are used earth wires reactors H.R. fuses isolators earth wires reactors H.R. fuses isolators ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The operating time of a fuse is about 1.5 sec 1 sec 0.002 sec 0.8 sec 1.5 sec 1 sec 0.002 sec 0.8 sec ANSWER DOWNLOAD EXAMIANS APP
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