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 None of these constant for all distances Lower than that of if fault occurs away from the relay higher than that of if fault occurs away from the relay None of these constant for all distances Lower than that of if fault occurs away from the relay ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A fuse should have high conductivity All of these low cost low melting point high conductivity All of these low cost low melting point ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The main function of a fuse is to open the circuit None of these protect the line prevent excessive currents protect the appliance open the circuit None of these protect the line prevent excessive currents protect the appliance ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The operating time of a circuit breaker is 0.002 sec 0.001 sec 0.2 sec 0.05 sec 0.002 sec 0.001 sec 0.2 sec 0.05 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The transient voltage that appears across the contacts at the instant of arc extinction is called recovery voltage peak voltage supply voltage restriking voltage recovery voltage peak voltage supply voltage restriking voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following is used in liquid fuses ? transformer oil distilled water carbon tetrachloride sulphur hexafluoride transformer oil distilled water carbon tetrachloride sulphur hexafluoride ANSWER DOWNLOAD EXAMIANS APP