Switch Gear The arcing contacts in a circuit breaker are made of porcelain copper tungsten alloy electrolytic copper aluminium alloy porcelain copper tungsten alloy electrolytic copper aluminium alloy ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The main function of a fuse is to protect the appliance None of these protect the line prevent excessive currents open the circuit protect the appliance None of these protect the line prevent excessive currents open the circuit ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse is never inserted in neutral wire phase line negative of dc circuit positive of dc circuit neutral wire phase line negative of dc circuit positive of dc circuit ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The single phasing relays are used for the protection of single phase motors only two phase motors only three phase motors two single phase motors running in parallel single phase motors only two phase motors only three phase motors two single phase motors running in parallel ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A differential relay measures the vector difference between two currents two voltages None of these two or more similar electrical quantities two currents two voltages None of these two or more similar electrical quantities ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The advantage of HRC fuse is that it does not deteriorate with age All of these has high speed of operation is quite cheap does not deteriorate with age All of these has high speed of operation is quite cheap ANSWER DOWNLOAD EXAMIANS APP
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