Switch Gear Back up protection is generally used for protection against None of these open-circuit faults only both open and short-circuit faults short-circuit faults only None of these open-circuit faults only both open and short-circuit faults short-circuit faults only 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 insulate the contacts from switch body None of these All of these lubricate the contacts extinguish the arc insulate the contacts from switch body None of these All of these lubricate the contacts extinguish the arc ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The advantage of HRC fuse is that it has high speed of operation does not deteriorate with age All of these is quite cheap has high speed of operation does not deteriorate with age All of these is quite cheap ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker is a current limiting device circuit interrupting device current controlling device None of these current limiting device circuit interrupting device current controlling device None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Wave trap is used to trap waves of higher frequencies entering generator or transformer units None of these either of the above power frequencies higher frequencies entering generator or transformer units None of these either of the above power frequencies ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The single phasing relays are used for the protection of single phase motors only two phase motors only two single phase motors running in parallel three phase motors single phase motors only two phase motors only two single phase motors running in parallel three phase motors ANSWER DOWNLOAD EXAMIANS APP
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