3. A settling tank has an overflow rate of 100,000 gal/ft²-d. Water carrying sediment of various sizes enters the tank. The sediment has the following distribution of settling velocities. Settling velocity (ft/min) 10.0 5.0 2.0 1.0 Mass fraction remaining 0.54 0.45 0.35 0.20 0.10 0.03 0.75 0.50 What is the gravimetric percentage of sediment particles completely removed? (A) 32% (B) 39% (C) 47% (D) 55%

3. A settling tank has an overflow rate of 100,000 gal/ft²-d. Water carrying sediment of various sizes enters the tank. The sediment has the following distribution of settling velocities. Settling velocity (ft/min) 10.0 5.0 2.0 1.0 Mass fraction remaining 0.54 0.45 0.35 0.20 0.10 0.03 0.75 0.50 What is the gravimetric percentage of sediment particles completely removed? (A) 32% (B) 39% (C) 47% (D) 55%

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter8: Stresses In A Soil Mass

Section: Chapter Questions

Problem 8.14P

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