(Solved): 3. The grain-size analysis for a soil is given as: a. Plot the grain-size distribution curve of th ...

3. The grain-size analysis for a soil is given as: a. Plot the grain-size distribution curve of the soil. b. Determine \( \mathrm{D}_{10}, \mathrm{D}_{30} \), and \( \mathrm{D}_{60} \) from the grain-size distribution curve. c. Calculate the uniformity coefficient, \( \mathrm{Cu} \). d. Calculate the coefficient of gradation, \( \mathrm{C}_{\mathrm{c}} \). e. Classify the soil using the USC System.