Q116
Main mechanical ventilator in a mine shall be capable of producing adequate ventilation in a mine or part there of and shall be installed on the surface at a distance of not less than . . . . . . . . meters from the opening of a shaft or incline at any point.
A.
5
B.
15
C.
10
AnswerD.
20
Answer: Option C
Solution
Answer: Option C
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