The thickness of one slice in multi section extraction of thick seams.
A. 2.4 - 3 m
B. 1.5 - 2 m
C. 2 - 2.5 m
D. 3 - 3.5 m
Answer: Option A
A. 2.4 - 3 m
B. 1.5 - 2 m
C. 2 - 2.5 m
D. 3 - 3.5 m
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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