Switch Gear Arc in a circuit breaker behaves as an inductive reactance a capacitive reactance a resistance increasing with voltage rise across the arc a resistance decreasing with voltage rise across the arc an inductive reactance a capacitive reactance a resistance increasing with voltage rise across the arc a resistance decreasing with voltage rise across the arc ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To reduce short circuit fault currents......... are used. resistors reactors None of these capacitors resistors reactors None of these capacitors 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 lubricate the contacts extinguish the arc insulate the contacts from switch body All of these None of these lubricate the contacts extinguish the arc insulate the contacts from switch body All of these None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Outdoor switchgear is generally used for voltage beyond 33 kV 11 kV 66 kV 132 kV 33 kV 11 kV 66 kV 132 kV ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to 2.55 × symmetrical breaking capacity √2 × symmetrical breaking capacity √3 × symmetrical breaking capacity None of these 2.55 × symmetrical breaking capacity √2 × symmetrical breaking capacity √3 × symmetrical breaking capacity None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Breaking capacity of a circuit breaker is usually expressed in terms of Mw MVA amperes volts Mw MVA amperes volts ANSWER DOWNLOAD EXAMIANS APP
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