7. If the natural moisture content, the liquid limit and plastic limit of a soil sample are stated as 30.5%, 42.5% and 22.5% respectively, the ratio of liquidity index and plastic index, is
9. Pick up the correct statement from the following:
Options
A. The object of classifying soils is to arrange them into groups according to their properties and behaviour
B. A soil classification system is meant to provide an accepted and systematic method of describing the various types of soils eliminating personal factors
C. The first category of soil classification is based on grain size of the soil
D. The second category of soil classification is based on fine as well as coarse grains
