Grain Size Distribution
1. A soil sample may be well graded if it has ____.
2. The particle size distribution curves are extremely useful for the classification of which of the following?
3. Which sieve size separates coarse-grained soil from fine-grained soil in the Unified Soil Classification System (USCS)?
4. The shape of the particle size curve, which is represented by the coefficient of curvature (Cc), is given by ____.
5. The coefficient of uniformity (Cu) is the ratio of ____.
6. A soil is considered 'well-graded sand' if:
7. Laboratory sieve analysis was carried out on a soil sample using a complete set of standard IS sieves. Out of 500g of soil used in the test, 200g was retained on IS 600 Mu sieve, 250g was retained on IS 500 Mu sieve and the remaining 50g was retained on IS 425 Mu sieve. Determine the uniformity coefficient (Cu).
8. For a soil sample, D60 = 0.45 mm, D30 = 0.30 mm, and D10 = 0.15 mm. Calculate the coefficient of curvature (Cc).
9. In a hydrometer analysis, the effective depth (He) changes as: