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Soil Mechanics and Foundation Engineering - Engineering

Q1:

The ratio of the volume of voids to the total volume of the given soil mass, is known

A porosity

B specific gravity

C void ratio

D water content.

ANS:A - porosity

Porosity:- Total volume of voids(Vv)/ Total volume of soil mass(V), but,
Void ratio:-Total volume of voids(Vv)/Total volume of soil solids(Vs). Porosity = volume of voids Vv/Total Volume of soil mass Vt.
Void Ratio = volume of void Vv/Volume of Solid Vs.
Therefore answer is porosity. Void ratio=volume of void/volume of soil.

Porosity=volume of void/total volum of soil.