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1. |
Which of the following is correct in the context of gravel sand size ratio when the uniformity coefficient is less than 5; consider flow velocity is less than 0.05 ft/sec? |
A. | D<sub>10</sub> gravel = 7 times D<sub>10</sub> sand size |
B. | D<sub>10</sub> gravel = 8 times D<sub>10</sub> sand size |
C. | D<sub>10</sub> gravel = 6 times D<sub>10</sub> sand size |
D. | D<sub>10</sub> gravel = 4 times D<sub>10</sub> sand size |
Answer» D. D<sub>10</sub> gravel = 4 times D<sub>10</sub> sand size | |