Switch Gear Which of the following circuit breakers is prefered for EHT applications ? air break circuit breaker bulk oil circuit breaker Sf6 CB low oil circuit breaker air break circuit breaker bulk oil circuit breaker Sf6 CB low oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The fault that imposes severest duty on the circuit breaker is two lines to ground fault all three lines short-circuited line to line fault line to ground fault two lines to ground fault all three lines short-circuited line to line fault line to ground fault ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The making capacity of a circuit breaker is equal to 2.55 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity √3 × symmetrical breaking capacity 2.55 × symmetrical breaking capacity None of these √2 × symmetrical breaking capacity √3 × symmetrical breaking capacity 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 low oil circuit breaker bulk oil circuit breaker sf 6 circuit breaker air break circuit breaker low oil circuit breaker bulk oil circuit breaker ANSWER DOWNLOAD EXAMIANS APP
Switch Gear The advantage of HRC fuse is that it is quite cheap All of these does not deteriorate with age has high speed of operation is quite cheap All of these does not deteriorate with age has high speed of operation ANSWER DOWNLOAD EXAMIANS APP
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