Switch Gear Most of the relays on service on electric power system are electro-mechanical relays thermal relays None of these electronic relays electro-mechanical relays thermal relays None of these electronic relays ANSWER DOWNLOAD EXAMIANS APP
Switch Gear For interrupting of high voltage and low current, the circuit breaker prefered is oil circuit breaker all are correct air-blast circuit breaker vaccum circuit breaker oil circuit breaker all are correct air-blast circuit breaker vaccum circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The voltage appearing across the contacts after opening of the circuit breaker is called surge voltage operating voltage recovery voltage arc voltage surge voltage operating voltage recovery voltage arc voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A differential relay measures the vector difference between two currents two voltages two or more similar electrical quantities None of these two currents two voltages two or more similar electrical quantities None of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Admittance relay is None of these directional relay impedance relay non-directional relay None of these directional relay impedance relay non-directional relay ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Which of the following CB's is generally used in railways applications ? sf 6 circuit breaker air break circuit breaker bulk oil circuit breaker low oil circuit breaker sf 6 circuit breaker air break circuit breaker bulk oil circuit breaker low oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
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