Switch Gear When a fault occur in a power system, the circuit breaker is opened manually None of these opens automatically is opened by remote control is opened manually None of these opens automatically is opened by remote control ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Wave trap is used to trap waves of None of these power frequencies either of the above higher frequencies entering generator or transformer units None of these power frequencies either of the above higher frequencies entering generator or transformer units ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For the same power, the least size is of sf6 circuit breaker vaccum circuit breaker air-blast circuit breaker oil circuit breaker sf6 circuit breaker vaccum circuit breaker air-blast circuit breaker oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Arc in a circuit breaker behaves as 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 an inductive reactance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The main function of a fuse is to open the circuit None of these protect the line prevent excessive currents protect the appliance open the circuit None of these protect the line prevent excessive currents protect the appliance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to √2 × symmetrical breaking capacity 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 ANSWER DOWNLOAD EXAMIANS APP
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