Switch Gear The operating time of a fuse is about 1.5 sec 1 sec 0.8 sec 0.002 sec 1.5 sec 1 sec 0.8 sec 0.002 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arc voltage produced in AC circuit breaker is always 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° None of these In phase with the arc current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The reflection co-efficient at the open circuited end of a transmission line infinity None of these unity zero infinity None of these unity zero ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The relay operating speed depends upon armature core air gap the spring tension the rate of flux built up All of these armature core air gap the spring tension the rate of flux built up All of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear In a single bus-bar system there will be complete shut down when two or more faults occur simultaneously fault occurs on neutral line fault occurs on the bus itself fault occurs with respect to earthing two or more faults occur simultaneously fault occurs on neutral line fault occurs on the bus itself fault occurs with respect to earthing ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A three phase circuit breaker is rated at 2000 MVA, 33 kv. The symmetrical breaking current is 60 kA 80 kA 20 kA 35 kA 60 kA 80 kA 20 kA 35 kA ANSWER DOWNLOAD EXAMIANS APP