Air at a density of 1.2 kg/m3 flows in a straight duct such that the velocity at the centre is 12.5m/s. the method factor for the velocity profile is known to be 0.80. The velocity pressure value in the duct in Pa is
A. 31
B. 47
C. 60
D. 83
Answer: Option C
This Question Belongs to Mining Engineering >> Mine Ventilation
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