Switch Gear The arc voltage produced in AC circuit breaker is always In phase with the arc current None of these leading the arc current by 90° lagging the arc current by 90° In phase with the arc current None of these leading the arc current by 90° lagging the arc current by 90° ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Insulation resistance of high voltage circuit breakers is more than 100 mega ohms 500 mega ohms 1 mega ohms 10 mega ohms 100 mega ohms 500 mega ohms 1 mega ohms 10 mega ohms ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fuse wire, in D.C. circuits, is inserted in negative circuit only 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 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The transient voltage that appears across the contacts at the instant of arc extinction is called peak voltage supply voltage restriking voltage recovery voltage peak voltage supply voltage restriking voltage recovery voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse is a current limiting device current controlling device protective device None of these current limiting device current controlling device protective device None of these 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 extinguish the arc None of these insulate the contacts from switch body All of these lubricate the contacts extinguish the arc None of these insulate the contacts from switch body All of these lubricate the contacts ANSWER DOWNLOAD EXAMIANS APP
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