Switch Gear The transient voltage that appears across the contacts at the instant of arc extinction is called supply voltage recovery voltage peak voltage restriking voltage supply voltage recovery voltage peak voltage restriking voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is used in liquid fuses ? distilled water transformer oil carbon tetrachloride sulphur hexafluoride distilled water transformer oil carbon tetrachloride sulphur hexafluoride ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Back up protection is generally used for protection against None of these both open and short-circuit faults open-circuit faults only short-circuit faults only None of these both open and short-circuit faults open-circuit faults only short-circuit faults only ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Circuit breakers usually operate under steady state of short circuit current transient state of short circuit current sub-transient state of short circuit current after dc component has ceased steady state of short circuit current transient state of short circuit current sub-transient state of short circuit current after dc component has ceased ANSWER DOWNLOAD EXAMIANS APP
Switch Gear SF6 gas is lighter than air is yellow in colour has pungent small None of these is nontoxic is lighter than air is yellow in colour has pungent small None of these is nontoxic 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 None of these insulate the contacts from switch body All of these extinguish the arc lubricate the contacts None of these insulate the contacts from switch body All of these extinguish the arc lubricate the contacts ANSWER DOWNLOAD EXAMIANS APP
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