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

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

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Soil Mechanics and Foundation
If the material of the base of the Casagrande liquid limit device on which the cup containing soil paste drops is softer than the standard hard rubber, then

The liquid limit of soil may increase
The liquid limit of soil may decrease
The liquid limit of soil always decreases
The liquid limit of soil always increases

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

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

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