Important questions about Geotechnical Engineering Basic Concepts. Geotechnical Engineering Basic Concepts MCQ questions with answers. Geotechnical Engineering Basic Concepts exam questions and answers for students and interviews.

A soil mass in a three-phase system consists of ______

Options

A : a. solids, water and air

B : b. sand, gravel and air

C : c. solids and water only

D : d. solids and air only

When the soil is fully saturated, then there are no air voids present in it.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

The volume of voids V? is equal to the sum of ______

Options

A : a. the volume of air and volume of solids

B : b. the volume of air and volume of water

C : c. the volume of water and volume of solids

D : d. the volume of water and the weight of water

The phase diagram is also known as _______

Options

A : a. soil grain diagram

B : b. block diagram

C : c. constituents diagram

D : d. element diagram

The weight of total voids is equal to the weight of Water.

Options

A : a. True

B : b. False

C : c. May be True or False

D : d. Can't say

In the phase diagram, volumes are represented on the ________

Options

A : a. left side

B : b. right side

C : c. top

D : d. bottom

The volume of solids is represented as _______ in the phase diagram.

Options

A : a. V?

B : b. Vw

C : c. V?

D : d. V?

The weight of solids is represented as _______

Options

A : a. Wd

B : b. Ww

C : c. W?

D : d. W

The total weight of the moist sample is the sum of _______

Options

A : a. Ww+Wd

B : b. W?+Ww

C : c. W?+Wd

D : d. W?

For a fully saturated soil sample, the volume of voids is equal to _______

Options

A : a. volume of air

B : b. volume of water

C : c. the volume of air and volume of water

D : d. the volume of water and volume of solids

A soil sample weighs 190kN. After oven drying it weighs 150kN. What will be the weight of Water before oven drying?

Options

A : a. 35 kN

B : b. 40 kN

C : c. 30 kN

D : d. 45 kN

In wet soil mass, air occupies one-seventh of its volume and Water occupies one- eighth of its volume. What will be the ratio of volume of voids with respect to the total volume?

Options

A : a. 0.329

B : b. 0.279

C : c. 0.432

D : d. 0.286

What will be the porosity of a soil sample whose void ratio is 0.35?

Options

A : a. 19.5%

B : b. 40.65%

C : c. 25.9%

D : d. 30%

______ is independent of the total volume of the soil mass.

Options

A : a. Bulk unit weight

B : b. Dry unit weight

C : c. Submerged unit weight

D : d. Unit weight of solids

Void ratio is the ratio of _____

Options

A : a. volume of voids to total volume

B : b. volume of voids to volume of solids

C : c. volume of solids to volume of voids

D : d. volume of soil mass to volume of voids

If the porosity of a soil sample is 22%, then what will be its void ratio?

Options

A : a. 0.3

B : b. 0.27

C : c. 0.28

D : d. 0.25

For a soil sample, the ratio of saturated unit weight to dry unit weight is equal to 1.2 and specific gravity of solids G is 2.65, then its void ratio will be _____

Options

A : a. 0.58

B : b. 0.66

C : c. 0.53

D : d. 0.94

For a fully saturated soil sample, the degree of saturation is ______

Options

A : a. 0

B : b. 0.5

C : c. 0.8

D : d. 1

The percentage void ratio is defined as the ratio of _____

Options

A : a. volume of air voids to total volume of the soil mass

B : b. volume of air voids to volume of total voids

C : c. volume of air voids to volume of water

D : d. volume of voids to total volume of the soil mass

If air content and degree of saturation are represented as ac and S respectively, then the relationship between them is ________