Soil Mechanics and Foundation
Which of the following methods is more suitable for the determination of permeability of clayey soil ?

None of these
falling head method
horizontal permeability test
constant head method

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

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

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