Soil Mechanics and Foundation
With the increase in the amount of compaction energy

optimum water content increases but maximum dry density decreases
both optimum water content and maximum dry density increase
both optimum water content and maximum dry density decrease[ES 93]
optimum water content decreases but maximum dry density increases

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

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
A soil is said to be well graded if it has most of the particles of about the same size

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