Switch Gear The fault that imposes severest duty on the circuit breaker is all three lines short-circuited line to ground fault two lines to ground fault line to line fault all three lines short-circuited line to ground fault two lines to ground fault line to line fault ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fuse wire, in DC circuit, is inserted in None of these Both positive and negative circuit negative circuit only positive circuit only None of these Both positive and negative circuit negative circuit only positive circuit only ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse should have high conductivity low cost low melting point All of these high conductivity low cost low melting point All of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The pick-up current of a relay is 7.5 A and the fault current in relay is 30 A. Its plug-setting multiplier (P.S.M.) is 8 2 4 6 8 2 4 6 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To reduce short circuit fault currents......... are used. reactors capacitors None of these resistors reactors capacitors None of these resistors ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Circuit breakers usually operate under sub-transient state of short circuit current transient state of short circuit current steady state of short circuit current after dc component has ceased sub-transient state of short circuit current transient state of short circuit current steady state of short circuit current after dc component has ceased ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS