GATE MN · 2026 · MN
Question 60: Mining Methods
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Question 60
MNNAT2 marksNeeds review
A coal seam of 2.4 m thickness is mined with a DERD shearer at a cutting speed of 0.6 km h
. The web depth of the cut is 0.5 m. The average cross-sectional area of coal on the AFC during transportation is 0.24 m
. For the evacuation of cut coal from the face with 10% spillage, the required minimum velocity of the AFC, in m s
, is ____________. (rounded off to two decimal places)Log in to check the answer
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2026MN
GATE MN 2026 · Paper 1
Mining Engineering · Original paper archive
- Section
- Mining Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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