Switch Gear The operating time of a circuit breaker is 0.2 sec 0.05 sec 0.002 sec 0.001 sec 0.2 sec 0.05 sec 0.002 sec 0.001 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A differential relay measures the vector difference between two voltages two currents two or more similar electrical quantities None of these two voltages two currents two or more similar electrical quantities None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 100 micro-second 0.1 sec 0.5 sec 50 milli-second 100 micro-second 0.1 sec 0.5 sec 50 milli-second 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 extinguish the arc lubricate the contacts None of these All of these insulate the contacts from switch body extinguish the arc lubricate the contacts None of these All of these insulate the contacts from switch body ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The material used for fuse must have low melting point and high specific resistance Low melting point and low specific resistance low melting point and any specific resistance high melting point and low specific resistance low melting point and high specific resistance Low melting point and low specific resistance low melting point and any specific resistance high melting point and low specific resistance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rating of a circuit breaker is generally determined on the basis of single line to ground fault current line to line fault current symmetrical fault current double line to ground fault current single line to ground fault current line to line fault current symmetrical fault current double line to ground fault current ANSWER DOWNLOAD EXAMIANS APP
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