The life C.I. pipes used in sand stowing is . . . . . . . . lac ton of sand.
A. 1 - 4
B. 4 - 8
C. 8 - 12
D. 12 - 16
Answer: Option B
This Question Belongs to Mining Engineering >> Coal Mining
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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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