Switch Gear If the length of the arc in a circuit breaker increases, its resistance increases None of these decreases remains same increases None of these decreases remains same ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The transient voltage that appears across the contacts at the instant of arc extinction is called peak voltage restriking voltage recovery voltage supply voltage peak voltage restriking voltage recovery voltage supply voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Resistance grounding is used for voltage between 11 kv to 33 kv 33 kV to 66 kV None of these 3.3 kV to 11 kv 11 kv to 33 kv 33 kV to 66 kV None of these 3.3 kV to 11 kv 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 insulate the contacts from switch body lubricate the contacts extinguish the arc All of these None of these insulate the contacts from switch body lubricate the contacts extinguish the arc All of these None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For interrupting of high voltage and low current, the circuit breaker prefered is air-blast circuit breaker all are correct vaccum circuit breaker oil circuit breaker air-blast circuit breaker all are correct vaccum circuit breaker oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fuse wire, in DC circuit, is inserted in negative circuit only Both positive and negative circuit None of these positive circuit only negative circuit only Both positive and negative circuit None of these positive circuit only ANSWER DOWNLOAD EXAMIANS APP
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