GATE CE 2021 Set 2 — Question 33
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Water Resources Engineering → Fluid Properties & Statics → Fluid Pressure
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Question
A lake has a maximum depth of m. If the mean atmospheric pressure in the lake region is kPa and the unit weight of the lake water is N/m, the absolute pressure (in kPa, round off to two decimal places) at the maximum depth of the lake is ___________
Correct answer
677.5 to 679.5
Solution
Given:
Maximum depth, m
Atmospheric pressure, kPa
Unit weight of water, N/mAbsolute pressure at depth is given by:
Calculating gauge pressure in kPa:
Absolute pressure:
Rounding off to two decimal places, the absolute pressure is kPa.
Maximum depth, m
Atmospheric pressure, kPa
Unit weight of water, N/mAbsolute pressure at depth is given by:
Calculating gauge pressure in kPa:
Absolute pressure:
Rounding off to two decimal places, the absolute pressure is kPa.
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