Switch Gear A fuse should have high conductivity low cost All of these low melting point high conductivity low cost All of these low melting point ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Arc in a circuit breaker is interrupted at maximum current zero current minimum voltage maximum voltage maximum current zero current minimum voltage maximum voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following CB's is generally used in railways applications ? air break circuit breaker bulk oil circuit breaker low oil circuit breaker sf 6 circuit breaker air break circuit breaker bulk oil circuit breaker low oil circuit breaker sf 6 circuit breaker 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 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 insulate the contacts from switch body lubricate the contacts ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Directional relay are based on flow of current voltage wave All of these power current voltage wave All of these power ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Circuit breakers usually operate under 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 after dc component has ceased sub-transient state of short circuit current transient state of short circuit current ANSWER DOWNLOAD EXAMIANS APP
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