GATE MN · 2026 · MN
Question 33: Mine Ventilation
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Question 33
MNNAT1 markNeeds review
In an underground mine, an airflow of 30 m³ s⁻¹ is delivered through a circular opening having a diameter of 5 m and a length of 500 m. Assuming that there is no change in the surface characteristics, the diameter of the opening, in m, required to double the quantity of airflow at same pressure loss is ____________. (rounded off to two decimal places)
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2026MN
GATE MN 2026 · Paper 1
Mining Engineering · Original paper archive
- Section
- Mining Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 1 mark
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