Mechanical Engineering > GATE 2025 > Flow Measurement
A pitot tube connected to a U-tube mercury manometer measures the speed of air flowing in the wind tunnel as shown in the figure below. The density of air is 1.23 kg m-3 while the density of water is 1000 kg m-3. For the manometer reading of h=30 mm of mercury, the speed of air in the wind tunnel is ______ m s-1 (rounded off to 1 decimal place).
Assume: Specific gravity of mercury =13.6
Acceleration due to gravity =10 m s-2
Assume: Specific gravity of mercury =13.6
Acceleration due to gravity =10 m s-2
Correct : 23.0
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