Switch Gear Directional relay are based on flow of current power All of these voltage wave current power All of these voltage wave ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The voltage appearing across the contacts after opening of the circuit breaker is called surge voltage recovery voltage operating voltage arc voltage surge voltage recovery voltage operating voltage arc voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 0.5 sec 100 micro-second 0.1 sec 50 milli-second 0.5 sec 100 micro-second 0.1 sec 50 milli-second ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Series capacitors are used to None of these compensate for line inductive reactance compensate for line capacitive reactance improve line voltage None of these compensate for line inductive reactance compensate for line capacitive reactance improve line voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker must perform the duty of carrying fault current for a short time All of these opening the faulty circuit and breaking the fault current being closed on to a fault carrying fault current for a short time All of these opening the faulty circuit and breaking the fault current being closed on to a fault ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to √2 × symmetrical breaking capacity None of these √3 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity √2 × symmetrical breaking capacity None of these √3 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity ANSWER DOWNLOAD EXAMIANS APP
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