» Unlabelled » Which of the following circuit breakers has high reliability and minimum maintenance ?

Thursday, 22 August 2013

Which of the following circuit breakers has high reliability and minimum maintenance ?

(a)     Air blast circuit breakers
(b)     Circuit breaker with SF6 gas
(c)    Vacuum circuit breakers
(d)    Oil circuit breakers

Ans: b


at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)