Pressure at which SF6 gas is maintained in closed position of breaker

Q.  What is the normal pressure at which the SF6 gas is maintained in the closed position of the breaker?
- Published on 17 Nov 15

a. 2 kg / cm2
b. 2.5 kg /cm2
c. 2.8 kg / cm2
d. 3 kg / cm2

ANSWER: 2.8 kg / cm2

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