Soil Mechanics and Foundation
For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as

wet of OMC and dry of OMC
dry of OMC and dry of OMC where OMC is optimum moisture content
wet of OMC and wet of OMC
dry of OMC and wet of OMC

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Soil Mechanics and Foundation
Coefficient of compressibility is

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

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Soil Mechanics and Foundation
Coefficient of earth pressure at rest is

greater than active earth pressure but less than passive earth pressure
greater than both the active earth pressure and passive earth pressure
less than both the active and passive earth pressures
less than active earth pressure but greater than passive earth pressure

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