GATE CE 2023 Set 2 — Question 33
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Water Resources Engineering → Fluid Properties & Statics → Manometry
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Question
The pressure in a pipe at X is to be measured by an open manometer as shown in figure. Fluid A is oil with a specific gravity of 0.8 and Fluid B is mercury with a specific gravity of 13.6. The absolute pressure at X is _________________________ (round off to one decimal place).[Assume density of water as and acceleration due to gravity as and atmospheric pressure as ][Note: Figure is not to scale]
Correct answer
140 to 141
Solution
Given:
Specific gravity of Fluid A (oil),
Specific gravity of Fluid B (mercury), From the manometer diagram, the absolute pressure at X is found by summing the pressures from the open end down to the pipe level:
Where and .
Rounding to one decimal place, .
Specific gravity of Fluid A (oil),
Specific gravity of Fluid B (mercury), From the manometer diagram, the absolute pressure at X is found by summing the pressures from the open end down to the pipe level:
Where and .
Rounding to one decimal place, .
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