Switch Gear The making capacity of a circuit breaker is equal to √3 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity √3 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The pick-up current of a relay is 7.5 A and the fault current in relay is 30 A. Its plug-setting multiplier (P.S.M.) is 8 6 2 4 8 6 2 4 ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The transient voltage that appears across the contacts at the instant of arc extinction is called supply voltage restriking voltage recovery voltage peak voltage supply voltage restriking voltage recovery voltage peak voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The device that detects the fault in a power system is circuit breaker isolator relay None of these circuit breaker isolator relay None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the fault occurs near the impedance relay, the V/ I ratio will be higher than that of if fault occurs away from the relay constant for all distances None of these Lower than that of if fault occurs away from the relay higher than that of if fault occurs away from the relay constant for all distances None of these Lower than that of if fault occurs away from the relay ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The main function of a fuse is to protect the line protect the appliance prevent excessive currents open the circuit None of these protect the line protect the appliance prevent excessive currents open the circuit None of these ANSWER DOWNLOAD EXAMIANS APP
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