Switch Gear The contacts of high voltage switches used in power system are submerged in oil. The main purpose of the oil is to extinguish the arc lubricate the contacts All of these insulate the contacts from switch body None of these extinguish the arc lubricate the contacts All of these insulate the contacts from switch body None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear When a fault occur in a power system, the circuit breaker is opened by remote control opens automatically None of these is opened manually is opened by remote control opens automatically None of these is opened manually ANSWER DOWNLOAD EXAMIANS APP
Switch Gear When the circuit breaker operates under fault conditions, the greatest noise is produced in air-blast circuit breaker vaccum circuit breaker sf6 circuit breaker oil circuit breaker air-blast circuit breaker vaccum circuit breaker sf6 circuit breaker oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breaker is used for repeated duty intermittent duty short duty over currents repeated duty intermittent duty short duty over currents ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Series capacitors are used to improve line voltage None of these compensate for line inductive reactance compensate for line capacitive reactance improve line voltage None of these compensate for line inductive reactance compensate for line capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Minimum arcing voltage will be least in case of graphite carbon silver tungsten graphite carbon silver tungsten ANSWER DOWNLOAD EXAMIANS APP
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