sample of sand, 5 cm in diameter and 15 cm long, was prepared at a porosity of 60% in a constant-head apparatus. The total head was kept constant at 30 cm and the amount of water collected in 5 seconds was 40 cm^3. The test temperature was 20 deg C. Calculate the hydraulic conductivity. a. 6.7 x 10^-1 b. 3.47 x 10^-2 c. 5.0 x 10^-2 d. 2.0 x 10^-1

sample of sand, 5 cm in diameter and 15 cm long, was prepared at a porosity of 60% in a constant-head apparatus. The total head was kept constant at 30 cm and the amount of water collected in 5 seconds was 40 cm^3. The test temperature was 20 deg C. Calculate the hydraulic conductivity. a. 6.7 x 10^-1 b. 3.47 x 10^-2 c. 5.0 x 10^-2 d. 2.0 x 10^-1

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter6: Hydraulic Conductivity

Section: Chapter Questions

Problem 6.12P

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A sample of sand, 5 cm in diameter and 15 cm long, was prepared at a porosity of 60% in a constant-head apparatus. The total head was kept constant at 30 cm and the amount of water collected in 5 seconds was 40 cm^3. The test temperature was 20 deg C. Calculate the hydraulic conductivity. Provide a diagram a.5.0 x 10^-2 b.3.47 x 10^-2 c.2.0 x 10^-1 d.6.7 x 10^-1
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Refer to the constant-head arrangement shown in Fig 5. For a test, the followingare given:• L =18 in.• A = area of the specimen = 3.5 in.2• Constant-head difference = h = 28 in.• Water collected in 3 min = 21.58 in3Calculate the hydraulic conductivity (in./sec).
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PROBLEM 1: A sample of sand, 5 cm in diameter and 15 cm long, was prepared at a porosity of 60% in a constant-head apparatus. The total head was kept constant at 30 cm and the amount of water collected in 5 seconds was 40 cm?. The test temperature was 20°C. the Calculate coefficient of permeability? a. 0.261 cm/s b. 0.960 cm/s c. 0.204 cm/s d. 0.178 cm/s
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