An experiment for to determine the shrinkage limit of the soil sample is conducted and the following data are obtained. (Initial volume of soil in saturated state = 25 cm^3, Final volume of soil in dry state = 15 cm^3, Initial mass of soil in saturated state = 45 g, Final mass of soil in dry state = 32 g). Determine the specific gravity of the soil sample.

Problem 2 A sample was shaken through a nest of sieves and the results are obtained. The initial soil mass of the soil sample is 500g. Draw the particle size distribution curves and interpret the graph. Mass Retained Sieve No. Diameter (mm) (gram) 4 4.75 0 10 2.00 40.2 20 0.85 84.6 30 0.6 50.2 40 0.425 40.0 60 0.25 106.4 140 0.106 108.8 200 0.075 59.4 Pan 8.7 Determine the: 6. Percentage Loss in Soil Mass 7. Particle Size (%Gravel, % Sand, % Silt and %Clay) according to USCS 8. Effective Grain Size (D10) 9. Coefficient of Uniformity (Cu) 10. Coefficient of Curvature/Gradient (Cc)

Question 3: For an inorganic soil the following grain - size analysis is given. U.S sieve Percent analysis 4 passing 100 10 90 20 64 40 38 80 18 200 13 For this soil, LL=23 and Pl=19, classify the soil by using a. AASHTO b. USCS c. Give group name and group symbols