Page 52 - ebook fluid mechanics_finalize

FLUID MECHANICS

Exercise 4

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1. A U-tube manometer measures the pressure difference between the two pipes M and

N of the liquid flow. The U-tube contains mercury with specific gravity of 13.6.
Calculate the pressure difference between points M and N If h1=1.5m, h2=0.75m and

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h3=0.5m. The liquid at M and N is the density of the water. Ans. 54.4kN/m

2. Figure above shows a differential manometer at two points A and B. At point A, the

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water pressure is 100kN/m . Find the absolute pressure at point B.
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Ans. 84.279 kN/m

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