Soil Mechanics and Foundation
Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively.If other things remain constant, the coefficient of permeability

decreases by 33.3%
increases by 33.3%
increases by 50%
increases by 25%

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Soil Mechanics and Foundation
The shear strength of a 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
Is directly proportional to the angle of internal friction of the soil

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