Soil Mechanics and Foundation
Allowable bearing pressure for a foundation depends upon

ultimate bearing capacity of soil only
both allowable settlement and ultimate bearing capacity
none of above
allowable settlement only

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Soil Mechanics and Foundation
Effective stress on soil

Increases voids ratio and decreases permeability
Increases both voids ratio and 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 increase in plasticity index
decrease in both liquid limit and plasticity index
increase in both liquid limit and plasticity index
decrease in liquid limit and no change in plasticity index

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Soil Mechanics and Foundation
The shear strength of a soil

Is directly proportional to the angle of internal friction of the soil
Decreases with decrease in normal stress
Is inversely proportional to the angle of internal friction of the soil
Decreases with increase in normal stress

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