Mining Engineering > GATE 2023 > Underground Coal Mining
A coal seam of 3.0 m height is mined with a double-ended ranging drum shearer (DERDS) for a web depth of 0.5 m. The coal density is 1.4 tonne/m3. If the panel width is 150 m, the production per cycle in tonne is _________. [rounded off to 1 decimal place]
Correct : 420.0
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