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 6 2 4 8 6 2 4 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to All of these extinguish the arc None of these lubricate the contacts insulate the contacts from switch body All of these extinguish the arc None of these lubricate the contacts insulate the contacts from switch body ANSWER DOWNLOAD EXAMIANS APP
Switch Gear In a single bus-bar system there will be complete shut down when fault occurs with respect to earthing fault occurs on neutral line two or more faults occur simultaneously fault occurs on the bus itself fault occurs with respect to earthing fault occurs on neutral line two or more faults occur simultaneously fault occurs on the bus itself ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is used in liquid fuses ? carbon tetrachloride distilled water sulphur hexafluoride transformer oil carbon tetrachloride distilled water sulphur hexafluoride transformer oil ANSWER DOWNLOAD EXAMIANS APP
Switch Gear When a fault occur in a power system, the circuit breaker is opened manually None of these opens automatically is opened by remote control is opened manually None of these opens automatically is opened by remote control ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The current rating of a fuse is 5A. The fusing current will be 5 A 2.5 A more than 5A 1 A 5 A 2.5 A more than 5A 1 A ANSWER DOWNLOAD EXAMIANS APP
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