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 lubricate the contacts All of these extinguish the arc None of these insulate the contacts from switch body lubricate the contacts All of these extinguish the arc None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is used in liquid fuses ? carbon tetrachloride sulphur hexafluoride distilled water transformer oil carbon tetrachloride sulphur hexafluoride distilled water transformer oil ANSWER DOWNLOAD EXAMIANS APP
Switch Gear HRC fuses provide best protection against short circuits overload reverse current open circuits short circuits overload reverse current open circuits ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The information to the circuit breaker under fault conditions is provided by relay rewirable fuse All of these H.R.'only relay rewirable fuse All of these H.R.'only ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse is a protective device None of these current limiting device current controlling device protective device None of these current limiting device current controlling device ANSWER DOWNLOAD EXAMIANS APP
Switch Gear SF 6 gas is yellow in colour Is nontoxic is lighter than air has pungent small is yellow in colour Is nontoxic is lighter than air has pungent small ANSWER DOWNLOAD EXAMIANS APP
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