Switch Gear The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to None of these insulate the contacts from switch body extinguish the arc All of these lubricate the contacts None of these insulate the contacts from switch body extinguish the arc All of these lubricate the contacts ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fuse wire, in D.C. circuits, is inserted in positive circuit only none of the listed here Both of the listed here negative circuit only positive circuit only none of the listed here Both of the listed here negative circuit only 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 Which of the following is used in liquid fuses ? distilled water sulphur hexafluoride transformer oil carbon tetrachloride distilled water sulphur hexafluoride transformer oil carbon tetrachloride ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A differential relay measures the vector difference between None of these two or more similar electrical quantities two voltages two currents None of these two or more similar electrical quantities two voltages two currents ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Arc in a circuit breaker is interrupted at maximum voltage maximum current minimum voltage zero current maximum voltage maximum current minimum voltage zero current ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS