Switch Gear The arcing contacts in a circuit breaker are made of aluminium alloy electrolytic copper copper tungsten alloy porcelain aluminium alloy electrolytic copper copper tungsten alloy porcelain ANSWER DOWNLOAD EXAMIANS APP
Switch Gear A circuit breaker is a current controlling device None of these circuit interrupting device current limiting device current controlling device None of these circuit interrupting device current limiting device ANSWER DOWNLOAD EXAMIANS APP
Switch Gear An efficient and a well designed protective relaying should have economy and simplicity good selectivity and reliability high speed and selectivity All of these economy and simplicity good selectivity and reliability high speed and selectivity All of these ANSWER DOWNLOAD EXAMIANS APP
Switch Gear HRC fuses provide best protection against open circuits short circuits reverse current overload open circuits short circuits reverse current overload ANSWER DOWNLOAD EXAMIANS APP
Switch Gear When the circuit breaker operates under fault conditions, the greatest noise is produced in air-blast circuit breaker sf6 circuit breaker vaccum circuit breaker oil circuit breaker air-blast circuit breaker sf6 circuit breaker vaccum circuit breaker oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the length of the arc in a circuit breaker increases, its resistance decreases remains same None of these increases decreases remains same None of these increases ANSWER DOWNLOAD EXAMIANS APP
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