Q118
CO/O2 deficiency ratio is . . . . . . . . normal to coal mine.
A.
0.1 to 0.5%
AnswerB.
0.5 - 0.8%
C.
0.8 to 1%
D.
0.0 - 0.3%
Answer: Option A
Solution
Answer: Option A
No explanation is given for this question Let's Discuss on Board