Any spoil bank exceeding . . . . . . . . meters in height shall be benched. So that no bench exceeds . . . . . . . . meters in height and the over all slope shall not exceed 1 vertical to . . . . . . . . horizontal.
A. 3, 3, 1.5
B. 2, 2, 3
C. 4, 4, 2
D. 3.5, 3.5, 2.5
Answer: Option A
This Question Belongs to Mining Engineering >> Coal Mining Regulation In India
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