Soil Mechanics and Foundation
Coefficient of compressibility is

different for different types of soils but same for a soil under different states of consolidation
constant for any type of soil
different for different types of soils and also different for a soil under different states of consolidation
independent of type of soil but depends on the stress history of soil

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

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Soil Mechanics and Foundation
Which of the following statements is correct?

For a well graded soil, both uniformity coefficient and coefficient of curvature are nearly unity.
A soil is said to be well graded if it has most of the particles of about the same size
None of these
Uniformity coefficient represents the shape of the particle size distribution curve.

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