The sedimentation tank is due for cleaning and its volume will be drained into half. The tank has a uniform cross-section area of 10m by 10m and currently filled at depth of 6 meters. If the orifice drainer has a coefficient of 0.90 and diameter of 5 centimeters, how much time in seconds would it take to reach the desired level for cleaning?

Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter8: Seepage
Section: Chapter Questions
Problem 8.12P
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The sedimentation tank is due for cleaning and its volume will be drained into half.

The tank has a uniform cross-section area of 10m by 10m and currently filled at depth of 6 meters.

If the orifice drainer has a coefficient of 0.90 and diameter of 5 centimeters, how much time in seconds would it take to reach the desired level for cleaning?

The correct answer has a margin of 10 seconds from the exact answer.

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