Switch Gear The time of closing the cycle, in modern circuit breakers is 0.001 sec 0.10 sec 0.01 sec 0.003 sec 0.001 sec 0.10 sec 0.01 sec 0.003 sec 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 All of these extinguish the arc None of these insulate the contacts from switch body lubricate the contacts All of these extinguish the arc None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The device that detects the fault in a power system is isolator circuit breaker relay None of these isolator circuit breaker relay None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The advantage of HRC fuse is that it has high speed of operation does not deteriorate with age is quite cheap All of these has high speed of operation does not deteriorate with age is quite cheap All of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The rated secondary current of current transformer for relays is generally 20 A 30 A 10 A 5 A 20 A 30 A 10 A 5 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear When a fault occur in a power system, the circuit breaker is opened manually opens automatically None of these is opened by remote control is opened manually opens automatically None of these is opened by remote control ANSWER DOWNLOAD EXAMIANS APP
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