Soil Mechanics and Foundation
Which of the following statements is correct?

A soil is said to be well graded if it has most of the particles of about the same size
For a well graded soil, both uniformity coefficient and coefficient of curvature are nearly unity.
Uniformity coefficient represents the shape of the particle size distribution curve.
None of these

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Soil Mechanics and Foundation
Rise of water table above the ground surface causes

Equal increase in pore water pressure and total stress
Decrease in pore water pressure but increase in total stress
Increase in pore water pressure but decrease in total stress
Equal decrease in pore water pressure and total stress

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