Soil Mechanics and Foundation
Terzaghi’s theory of one dimensional consolidation assumes

Deformation of the soil, is entirely due to change in volume
Water and soil particles are incompressible
Soil is homogeneous and fully saturated
All listed here

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

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Soil Mechanics and Foundation
For a loose sand sample and a dense sand sample consolidated to the same effective stress

ultimate strength is different but peak strength is same
ultimate strength is same and also peak strength is same
ultimate strength is same but peak
ultimate strength is same but peak strength of dense sand is greater than that of loose sand

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