Top 250+ Solved Geotechnical Engineering MCQ Questions Answer
Q. Physical properties of a permeant which influence permeability are
a. Viscosity only
b. Unit weight only
c. Both viscosity and unit weight
d. None of the above
Q. Rankine's theory of active earth pressure assumes
a. Soil mass is homogeneous, dry and cohesionless
b. Ground surface is a plane which may be horizontal or inclined
c. Back of the wall is vertical and smooth
d. All the above
Q. For testing a saturated clay for shear strength, the test recommended, is
a. Direct shear test
b. Triaxial compression test
c. Unconfined compression test
d. All the above
Q. Coefficient of permeability of soil
a. Does not depend upon temperature
b. Increases with the increase in temperature
c. Increases with the decrease in temperature
d. None of the above
Q. The triaxial apparatus is usually used for
a. Unconsolidated-undrained test
b. Consolidated-undrained test
c. Drained test
d. All the above tests
Q. Rise of water table in cohesion-less soils upto ground surface reduces the net ultimate bearing capacity approximately by
a. 25 %
b. 50 %
c. 75 %
d. 90 %
Q. A decrease in water content results in a reduction of the volume of a soil in
a. Liquid state
b. Plastic state
c. Semi solid state
d. All of these
Q. In non-cohesive soil in passive state of plastic equilibrium
a. Major principal stress is horizontal
b. Minor principal stress is vertical
c. Major principal stress is vertical
d. Minor and major principal stresses are equally inclined to the horizontal
Q. A soil has a bulk density of 22 kN/m3 and water content 10 %. The dry density of soil is
a. 18.6 kN/m3
b. 20.0 kN/m3
c. 22.0 kN/m3
d. 23.2 kN/m3
Q. If the sand in-situ is in its densest state, then the relative density of sand is
a. Zero
b. 1
c. Between 0 and 1
d. Greater than 1
Q. The property of a soil which permits water to percolate through it, is called
a. Moisture content
b. Permeability
c. Capillarity
d. None of these
Q. Toughness index is defined as the ratio of
a. Plasticity index to consistency index
b. Plasticity index to flow index
c. Liquidity index to flow index
d. Consistency index to liquidity index