GATE MN · 2022 · MN
Question 55: Mining Methods
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Question 55
MNNAT2 marksNeeds review
In a longwall face, the full seam thickness of 3 m is cut by a shearer with a web of depth 0.7 m. The hauling speed of shearer during cutting is 12 m/min. The trough cross-section of AFC is 0.4 m² and the average loading coefficient is 0.7. In order to evacuate coal from the face without spillage, the speed of AFC, in m/s is ______. (round off to one decimal place)
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2022MN
GATE MN 2022 · Paper 1
Mining Engineering · Original paper archive
- Section
- Mining Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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