Soil Mechanics and Foundation
The admixture of coarser particles like sand or silt to clay causes

decrease in liquid limit and increase in plasticity index
decrease in liquid limit and no change in plasticity index
increase in both liquid limit and plasticity index
decrease in both liquid limit and plasticity index

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Soil Mechanics and Foundation
The ultimate consolidation settlement of a structure resting on a soil

Decreases with the increase in the initial voids ratio
Decreases with the decrease in the plastic limit
Increases with the increase in the initial voids ratio
Increases with the decrease in the porosity of the soil

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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.
None of these
A soil is said to be well graded if it has most of the particles of about the same size
Uniformity coefficient represents the shape of the particle size distribution curve.

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Soil Mechanics and Foundation
Sensitivity of a soil can be defined as

percentage of volume change of soil under saturated condition
ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state
ratio of volume of voids to volume of solids
None of these

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