Switch Gear The arcing contacts in a circuit breaker are made of aluminium alloy porcelain copper tungsten alloy electrolytic copper aluminium alloy porcelain copper tungsten alloy electrolytic copper ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The advantage of HRC fuse is that it has high speed of operation is quite cheap All of these does not deteriorate with age has high speed of operation is quite cheap All of these does not deteriorate with age ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse performs None of these 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 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Overheating of relay contacts or contact born out is due to slow making and breaking of load circuit contacts all of these too low contact pressure foreign matter on the contact surface slow making and breaking of load circuit contacts all of these too low contact pressure foreign matter on the contact surface ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The main function of a fuse is to protect the line open the circuit None of these prevent excessive currents protect the appliance protect the line open the circuit None of these prevent excessive currents protect the appliance 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 300 A 100 A more than 1000 A 200 A 300 A 100 A ANSWER DOWNLOAD EXAMIANS APP
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