A pitot tube is inserted in a ventilation duct with the nose facing the air flow. A vertical U-tube manometer filled with alcohol (specific gravity 0.8) has been used for pressure measurements such that 10.2 mm is read as the total pressure and 8.8 mm as the static pressure. Given the density of air to be 1.2 kg/m3, the air velocity at the nose of the pitot tube in m/s is
A. 4.27
B. 6.53
C. 3.29
D. 5.67
Answer: Option A
This Question Belongs to Mining Engineering >> Mine Ventilation
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