Switch Gear Air blast circuit breakers for 400 kV power system are designed to operate in 0.1 sec 100 micro-second 50 milli-second 0.5 sec 0.1 sec 100 micro-second 50 milli-second 0.5 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse performs detection function only circuit interruption function only both detection and interruption functions None of these detection function only circuit interruption function only both detection and interruption functions None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the length of the arc in a circuit breaker increases, its resistance decreases None of these increases remains same decreases None of these increases remains same ANSWER DOWNLOAD EXAMIANS APP
Switch Gear SF6 gas is lighter than air is yellow in colour has pungent small None of these is nontoxic is lighter than air is yellow in colour has pungent small None of these is nontoxic ANSWER DOWNLOAD EXAMIANS APP
Switch Gear HRC fuses provide best protection against overload open circuits short circuits reverse current overload open circuits short circuits reverse current ANSWER DOWNLOAD EXAMIANS APP
Switch Gear protection of fuses is generally not used beyond 200 A 100 A 50 A 20 A 200 A 100 A 50 A 20 A ANSWER DOWNLOAD EXAMIANS APP
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