Pressure characteristic of a mine fan is given by. P = -0.06Q2 + 400. where P is the pressure in Pa and Q is the quantity in m3/s. The resistance of the mine is 0.19 Ns2/m8. An identical fan is installed in the mine to operate in series with the existing fan. The new mine quantity in m3/s is
A. 75.6
B. 56.7
C. 50.8
D. 30.2
Answer: Option C
This Question Belongs to Mining Engineering >> Mine Ventilation
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