In a mine ventilation system, the resistances of two splits A and B are 0.5 Ns2m-8 and 2 Ns2m-8 respectively. Combined resistance of two shafts and trunk airways is 0.7 Ns2m-8. A quantity of 20 m3/s of air passes through split A. The total air quantity passing the mine in m3/s is
A. 30
B. 27
C. 25
D. 17
Answer: Option A
This Question Belongs to Mining Engineering >> Mine Ventilation
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