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 insulate the contacts from switch body None of these lubricate the contacts extinguish the arc All of these insulate the contacts from switch body None of these lubricate the contacts extinguish the arc ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The single phasing relays are used for the protection of single phase motors only three phase motors two single phase motors running in parallel two phase motors only single phase motors only three phase motors two single phase motors running in parallel two phase motors only ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse element is generally made of brass silver iron steel brass silver iron steel ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For the protection of power station buildings against direct strokes the requirements are interception, conduction, dissipation and reflection interception, conduction and dissipation None of these interception interception and conduction interception, conduction, dissipation and reflection interception, conduction and dissipation None of these interception interception and conduction ANSWER DOWNLOAD EXAMIANS APP
Switch Gear In a circuit breaker the time duration from the instant of the fault to extinction of arc is known as operation time lag time lead time clearing time operation time lag time lead time clearing time ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rating of a circuit breaker is generally determined on the basis of symmetrical fault current single line to ground fault current line to line fault current double line to ground fault current symmetrical fault current single line to ground fault current line to line fault current double line to ground fault current ANSWER DOWNLOAD EXAMIANS APP
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