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 The time of closing the cycle, in modern circuit breakers is 0.001 sec 0.003 sec 0.10 sec 0.01 sec 0.001 sec 0.003 sec 0.10 sec 0.01 sec 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 The arc voltage produced in AC circuit breaker is always leading the arc current by 90° In phase with the arc current None of these lagging the arc current by 90° leading the arc current by 90° In phase with the arc current None of these lagging the arc current by 90° ANSWER DOWNLOAD EXAMIANS APP
Switch Gear SF6 gas is lighter than air has pungent small None of these is yellow in colour is nontoxic is lighter than air has pungent small None of these is yellow in colour is nontoxic ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For the protection of power station buildings against direct strokes the requirements are None of these interception, conduction and dissipation interception and conduction interception interception, conduction, dissipation and reflection None of these interception, conduction and dissipation interception and conduction interception interception, conduction, dissipation and reflection ANSWER DOWNLOAD EXAMIANS APP