Q69
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
AnswerD.
30.2
Answer: Option C
Solution
Answer: Option C
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