In B.G the drill holes are drilled by
A. Jumbos
B. Stopers
C. Driften
D. Air legs
Answer: Option A
A. Jumbos
B. Stopers
C. Driften
D. Air legs
Answer: Option A
The required water for 1 ton of sand in hydraulic sand stowing is . . . . . . . .
A. 800 l
B. 600 l
C. 1100 l
D. 1200 l
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