Soil Mechanics and Foundation
A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m2 to 200 kN/ m2. If the effective stress is further increased from 200 kN/ m2 to 400 kN/ m2, then the settlement of the same clay is

None of these
40 mm
20 mm
10 mm

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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
None of these
ratio of volume of voids to volume of solids

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Soil Mechanics and Foundation
Effective stress on soil

Increases both voids ratio and permeability
Increases voids ratio and decreases permeability
Decreases voids ratio and increases permeability
Decreases both voids ratio and permeability

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

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
decrease in liquid limit and increase in plasticity index

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