Q290
Every return airway as lies within . . . . . . . . meters of last working face and every haulage, shall be divided in to zones not longer than . . . . . . . . meters and . . . . . . . . meters each.
A.
200, 100, 50
AnswerB.
100, 50, 25
C.
75, 50, 25
D.
300, 200, 80
Answer: Option A
Solution
Answer: Option A
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