Switch Gear HRC fuses provide best protection against reverse current overload short circuits open circuits reverse current overload short circuits open circuits ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The time-current graph of a fuse is a circle has a linear characteristic None of these has inverse characteristic is a circle has a linear characteristic None of these has inverse characteristic ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following circuit breakers is prefered for EHT applications ? Sf6 CB bulk oil circuit breaker air break circuit breaker low oil circuit breaker Sf6 CB bulk oil circuit breaker air break circuit breaker low oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The arcing contacts in a circuit breaker are made of porcelain electrolytic copper copper tungsten alloy aluminium alloy porcelain electrolytic copper copper tungsten alloy aluminium alloy ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Circuit breakers usually operate under after dc component has ceased sub-transient state of short circuit current transient state of short circuit current steady state of short circuit current after dc component has ceased sub-transient state of short circuit current transient state of short circuit current steady state of short circuit current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The voltage appearing across the contacts after opening of the circuit breaker is called operating voltage arc voltage recovery voltage surge voltage operating voltage arc voltage recovery voltage surge voltage ANSWER DOWNLOAD EXAMIANS APP
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