Page 48 - ebook fluid mechanics_finalize

FLUID MECHANICS

EXERCISE 3

Fluid Q

1. A U-tube manometer similar to that shown above is used to measure the gauge

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pressure of a fluid P of density ρ = 1000 kg/m . If the density of the fluid Q is 13.6 ×
3
3
10 kg/m , calculate the gauge pressure at A if h1 = 0.15 m and h2 = 0.25 m above BC.
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2
Take into consideration patm = 101.3 kN/m . Ans. 70.84 kN/m

2. Calculate the absolute pressure at point A (air) if the density of mercury is 13.6x10 3

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3
kg/m and the air density is 1293 kg/m . Given h1=2m and h2 = 2.65m.
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Ans. 353.54 kN/m

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