Soil Mechanics And Foundation MCQ Questions & Answers | Civil Engineering

A. Soil is homogeneous and fully saturated

B. Water and soil particles are incompressible

C. Deformation of the soil, is entirely due to change in volume

D. All the above

A. The dry density reduces by addition of water after attaining optimum moisture content

B. The line joining the peak of three moisture content graphs obtained by using three compactive energies, is called line of optimus

C. Well graded coarse grained soils can be compacted to a very high density as compared to fine grained soils

D. All the above

A. The object of classifying soils is to arrange them into groups according to their properties and behaviour

B. A soil classification system is meant to provide an accepted and systematic method of describing the various types of soils eliminating personal factors

C. The first category of soil classification is based on grain size of the soil

D. All the above

A. constant for any type of soil

B. different for different types of soils and also different for a soil under different states of consolidation

C. different for different types of soils but same for a soil under different states of consolidation

D. independent of type of soil but depends on the stress history of soil

A. decreases with increase in liquid limit

B. increases with increase in liquid limit

C. first increases and then decreases with increase in liquid limit

D. remains constant at all liquid limits

A. In a direct shear box test, the plane of shear failure is predetermined

B. Better control is achieved on the drainage of the soil in a tri-axial compression test

C. Stress distribution on the failure plane in the case of tri-axial compression test is uniform

D. Unconfined compression test can be carried out on all types of soils

A. A uniform soil has more strength and stability than a non-uniform soil.

B. A uniform soil has less strength and stability than a non-uniform soil.

C. Uniformity coefficient does not affect strength and stability.

D. Uniformity coefficient of a poorly graded soil is more than that of a well graded soil.

A. Bearing capacity of a soil depends upon the amount and direction of load.

B. Bearing capacity of a soil depends on the type of soil.

C. Bearing capacity of a soil depends upon shape and size of footing.

D. Bearing capacity of a soil is indepen-dent of rate of loading.

A. coefficient of compressibility of an over-consolidated clay is less than that of a normally consolidated clay

B. coefficient of compressibility of an over-consolidated clay is greater than that of a normally consolidated clay

C. coefficient of compressibility is cons-tant for any clay

D. none of the above

A. Effective cohesion of a soil can never have a negative value.

B. Effective angle of internal friction for coarse grained soils is rarely below 30°

C. Effective angle of internal friction for a soil increases as state of compact-ness increases.

D. Effective angle of internal friction is a complicated function of mineralogy and clay size content.