Circuit Breaker Multiple Choice Questions
1. Which of the following statement about SF6 gas is incorrect? (a) it is a non-toxic gas (b) it is non-inflammable (c) it has density 5 times that of air at 20oC (d) it has dark yellow color. 2. SF6 gas is transported in (a) gas cylinders (b) liquid form in cylinders (c) solid form […]