Switch Gear The fault that imposes severest duty on the circuit breaker is two lines to ground fault line to ground fault all three lines short-circuited line to line fault two lines to ground fault line to ground fault all three lines short-circuited line to line fault ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To limit short-circuit current in a power system are used reactors isolators H.R. fuses earth wires reactors isolators H.R. fuses earth wires ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Back up protection is generally used for protection against open-circuit faults only short-circuit faults only both open and short-circuit faults None of these open-circuit faults only short-circuit faults only both open and short-circuit faults None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fusing factor is always more than 1 None of these always 1 always less than 1 always more than 1 None of these always 1 always less than 1 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to √2 × symmetrical breaking capacity None of these 2.55 × symmetrical breaking capacity √3 × symmetrical breaking capacity √2 × symmetrical breaking capacity None of these 2.55 × symmetrical breaking capacity √3 × symmetrical breaking capacity ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fuse wire, in DC circuit, is inserted in positive circuit only Both positive and negative circuit None of these negative circuit only positive circuit only Both positive and negative circuit None of these negative circuit only ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS