Top 250+ Solved Geotechnical Engineering MCQ Questions Answer
Q. Rise of water table above the ground surface causes
a. Equal increase in pore water pressure and total stress
b. Equal decrease in pore water pressure and total stress
c. Increase in pore water pressure but decrease in total stress
d. Decrease in pore water pressure but increase in total
Q. If the material of the base of the Casagrande liquid limit device on which the cup containingsoil paste drops is softer than the standard hard rubber, then
a. The liquid limit of soil always increases
b. The liquid limit of soil always decreases
c. The liquid limit of soil may increase
d. The liquid limit of soil may decrease
Q. A triaxial shear test is preferred to direct shear test, because
a. It can be performed under all three drainage conditions with complete control
b. Precise measurement of pore pressure and change in volume during test, is not possible
c. Stress distribution on the failure plane, is non uniform
d. None of these
Q. The average coefficient of permeability of natural deposits
a. Parallel to stratification is always greater than that perpendicular to stratification
b. Parallel to stratification is always less than that perpendicular to stratification
c. Is always same in both directions
d. Parallel to stratification may or may not be greater than that perpendicular to stratification
Q. The shear strength of a soil
a. Is directly proportional to the angle of internal friction of the soil
b. Is inversely proportional to the angle of internal friction of the soil
c. Decreases with increase in normal stress
d. Decreases with decrease in normal stress
Q. The major principal stress in an element of cohesion-less soil within the backfill of a retaining wall is
a. Vertical if the soil is in an active state of plastic equilibrium
b. Vertical if the soil is in a passive state of plastic equilibrium
c. Inclined at 45° to the vertical plane
d. None of the above
Q. A grillage foundation
a. Is provided for heavily loaded isolated columns
b. Is treated as spread foundation
c. Consists of two sets of perpendicularly placed steel beams
d. All the above
Q. Effective stress on soil
a. Increases voids ratio and decreases permeability
b. Increases both voids ratio and permeability
c. Decreases both voids ratio and permeability
d. Decreases voids ratio and increases permeability
Q. Hydrometer readings are corrected for:
a. Temperature correction
b. Meniscus correction
c. Dispersing agent correction
d. Temperature, meniscus and dispersing agent corrections
Q. The ultimate consolidation settlement of a structure resting on a soil
a. Decreases with the increase in the initial voids ratio
b. Decreases with the decrease in the plastic limit
c. Increases with the increase in the initial voids ratio
d. Increases with the decrease in the porosity of the soil
Q. The angle of internal friction, is least for
a. Angular-grained loose sand
b. Angular -grained dense sand
c. Round-grained loose sand
d. Clays
Q. Dispersed type of soil structure is an arrangement comprising particles having
a. Face to face or parallel orientation
b. Edge to edge orientation
c. Edge to face orientation
d. All of the above
Q. The neutral stress in a soil mass is
a. Force per neutral area
b. Force per effective area
c. Stress taken up by the pore water
d. Stress taken up by solid particles
Q. The coefficient of compressibility of soil, is the ratio of
a. Stress to strain
b. Strain to stress
c. Stress to settlement
d. Rate of loading to that of settlement
Q. A clay subjected to pressure in excess to its present over-burden, is said to be
a. Pre-compressed
b. Pre-consolidated
c. Over-consolidated
d. All the above