GATE MN · 2017 · MN
Question 48: Underground Hazards
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Question 48
MNNAT2 marksNeeds review
In a mine, 200 and 250 persons are deployed in the Panels A and B (shown in figure) respectively in the largest shift.
The panels produce 400 and 500 tonne/day respectively. The resistances of panels A and B are 0.3 Ns²m⁻⁸ and 0.4 Ns²m⁻⁸ respectively and the combined resistance of shaft and trunk airways is 0.5 Ns²m⁻⁸. The operating static pressure of the fan in Pa to provide the minimum air quantities in the panels as per CMR 1957 is ________
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2017MN
GATE MN 2017 · Paper 1
Mining Engineering · Original paper archive
- Section
- Mining Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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