A mine fan delivers 50 m3/s of air at a fan drift of 10 mm of w.g. It is proposed to increase the quantity to 60 m3/s of air. the required w.g. shall be
A. 12.0 mm
B. 14.4 mm
C. 13.6 mm
D. 20.2 mm
Answer: Option B
This Question Belongs to Mining Engineering >> Mine Ventilation
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