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Engineering, 27.06.2021 09:20 grace9874
I) A double-column enlarged-ends manometer is used to measure a small pressure
difference between the two points of a system conveying air under pressure, the diameter
of U-tube being 1/8 of the diameter of the enlarged ends. The heavy liquid used is water
and the lighter liquid in both limbs is oil of relative density 0.79. Assuming the surfaces of
the lighter liquid to remain in the enlarged ends, determine the difference in pressure in
metres of water for a manometer displacement of 70 mm.
(4 marks)
What would be the manometer reading if carbon tetrachloride (of relative density 1.56)
were used in place of water, the pressure conditions remaining the same? (3 marks)
dr
0
Oil
dx
Area, A
b
70
Area, a
DO
Water
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I) A double-column enlarged-ends manometer is used to measure a small pressure
difference between t...
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