Switch Gear The pick-up current of a relay is 7.5 A and the fault current in relay is 30 A. Its plug-setting multiplier (P.S.M.) is 4 6 8 2 4 6 8 2 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is used in liquid fuses ? distilled water transformer oil sulphur hexafluoride carbon tetrachloride distilled water transformer oil sulphur hexafluoride carbon tetrachloride ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Back up protection is generally used for protection against 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 None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Minimum arcing voltage will be least in case of tungsten graphite silver carbon tungsten graphite silver carbon ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The reflection co-efficient at the open circuited end of a transmission line None of these unity zero infinity None of these unity zero infinity 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
EXAMIANS