Soil Mechanics and Foundation
A pycnometer is used to determine

voids ratio and dry density
specific gravity and dry density
water content and voids ratio
water content and specific gravity

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Soil Mechanics and Foundation
Effective stress on soil

Increases voids ratio and decreases permeability
Increases both voids ratio and permeability
Decreases both voids ratio and permeability
Decreases voids ratio and increases permeability

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