Switch Gear Insulation resistance of high voltage circuit breakers is more than 1 mega ohms 500 mega ohms 10 mega ohms 100 mega ohms 1 mega ohms 500 mega ohms 10 mega ohms 100 mega ohms ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The operating time of a circuit breaker is 0.001 sec 0.05 sec 0.002 sec 0.2 sec 0.001 sec 0.05 sec 0.002 sec 0.2 sec ANSWER DOWNLOAD EXAMIANS APP
Switch Gear If the length of the arc in a circuit breaker increases, its resistance remains same None of these increases decreases remains same None of these increases decreases 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
Switch Gear The voltage appearing across the contacts after opening of the circuit breaker is called surge voltage arc voltage recovery voltage operating voltage surge voltage arc voltage recovery voltage operating voltage ANSWER DOWNLOAD EXAMIANS APP
Switch Gear Air blast circuit breaker is used for repeated duty over currents short duty intermittent duty repeated duty over currents short duty intermittent duty ANSWER DOWNLOAD EXAMIANS APP
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