Switch Gear The single phasing relays are used for the protection of single phase motors only three phase motors two single phase motors running in parallel two phase motors only single phase motors only three phase motors two single phase motors running in parallel two phase motors only ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Overheating of relay contacts or contact born out is due to foreign matter on the contact surface slow making and breaking of load circuit contacts too low contact pressure all of these foreign matter on the contact surface slow making and breaking of load circuit contacts too low contact pressure all of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The normal current in a power line is 100 A. If a short-circuit fault occurs on the line, then one can expect the short-circuit current to be more than 1000 A 200 A 100 A 300 A more than 1000 A 200 A 100 A 300 A ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the length of the arc in a circuit breaker increases, its resistance decreases increases remains same None of these decreases increases remains same None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse performs both detection and interruption functions circuit interruption function only detection function only None of these both detection and interruption functions circuit interruption function only detection function only None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear To limit short-circuit current in a power system are used isolators earth wires reactors H.R. fuses isolators earth wires reactors H.R. fuses ANSWER DOWNLOAD EXAMIANS APP
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