Switch Gear Minimum arcing voltage will be least in case of silver tungsten carbon graphite silver tungsten carbon graphite ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always None of these In phase with the arc current lagging the arc current by 90° leading the arc current by 90° None of these In phase with the arc current lagging the arc current by 90° leading the arc current by 90° ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to None of these √3 × symmetrical breaking capacity √2 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity None of these √3 × symmetrical breaking capacity √2 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The relay operating speed depends upon the spring tension armature core air gap the rate of flux built up All of these the spring tension armature core air gap the rate of flux built up All of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 0.1 sec 100 micro-second 0.5 sec 50 milli-second 0.1 sec 100 micro-second 0.5 sec 50 milli-second ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker must perform the duty of opening the faulty circuit and breaking the fault current All of these carrying fault current for a short time being closed on to a fault opening the faulty circuit and breaking the fault current All of these carrying fault current for a short time being closed on to a fault ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS