Quizz 3

Unsaturated porous media can be found in confined aquifer?

• True

• False

Uncofined aquifers consist od saturated and unsaturated porous media?

• True

• False

In unsaturated soil, the water content is zero?

• True

• False

The elementary model of porous media assumes:

• Mass of air phase is zero

• Volume of the solid phase is zero

• Volume of air phase is zero

The total density of a porous media is higher than the density of the fluid (water)?

• True

• False

The total density is the mass of 1 unit of volume of solid grains.

• True

• False

The porosity is the ratio of the voids volume to the total volume.

• True

• False

The degree of saturation of a saturated porous media is equal to 1.

• True

• False

The unit of the porosity is m³.

• True

• False

We consider a saturated porous media. The density of the solid grains is measured to be 2000 kg/m³. The porosity is measured to be 0.5. The total density of this porous media:

• 1500 kg/m³

• 2500 kg/m³

• 1750 kg/m³