Top 250+ Solved Geotechnical Engineering MCQ Questions Answer
Q. In active state of plastic equilibrium in a non cohesive soil with horizontal ground surface
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 horizontal
Q. A soil not fully consolidated under the existing over-burden pressure, is called
a. Pre-consolidated
b. Normally consolidated
c. Over-consolidated
d. None of these
Q. If Cv is the coefficient of consolidation,t is the time and d is drainage path of one dimensional consolidation of soil, the time factor Tv, is given by
a. Tv = d²/Cvt
b. Tv = t²/d²Cv
c. Tv = Cv3/d²t
d. Tv = Cvt/dt²
Q. Select the correct statement.
a. Unit weight of dry soil is greater than unit weight of wet soil
b. For dry soils, dry unit weight is less than total unit weight
c. Unit weight of soil increases due to submergence in water
d. Unit weight of soil decreases due to submergence in water
Q. The bearing capacity of a soil depends upon
a. Size of the particles
b. Shape of the particles
c. Cohesive properties of particles
d. All the above
Q. Pick up the correct statement from the following:
a. The void ratio in soils is defined as the ratio of the volume of voids to the volume of solids
b. The bulk density of a soil is defined as the unit weight of the soil
c. The dry density of a soil is defined as weight of solids to the total volume of the soil
d. All the above
Q. If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is
a. Less than specific gravity of soil
b. Equal to specific gravity of soil
c. Greater than specific gravity of soil
d. Independent of specific gravity of soil
Q. If water content of a soil is 40%, G is 2.70 and void ratio is 1.35, the degree of saturation is
a. 70 %
b. 75 %
c. 80 %
d. 85 %
Q. Stoke's law is valid only if the size of particle is
a. Less than 0.0002 mm
b. Greater than 0.2 mm
c. Between 0.2 mm and 0.0002 mm
d. All of the above
Q. Pick up the correct statement applicable to plate load test
a. Width of the test pit for plate load test is made five times the width of the plate
b. At the centre of the test pit, a hole is dug out whose size is kept equal to the size of the test plate
c. Bottom level of the hole dug at the centre of the test pit, is kept at the level of the actual formation
d. All the above
Q. Failure of a slope occurs only when total shear force is
a. Equal to total shearing strength
b. Greater than total shearing strength
c. Less than total shearing strength
d. None of these
Q. If the natural water content of soil mass lies between its liquid limit and plastic limit, the soil mass is said to be in
a. Liquid state
b. Plastic state
c. Semisolid state
d. Solid state
Q. Negative skin friction on piles
a. Is caused due to relative settlement of the soil
b. Is caused in soft clays
c. Decreases the pile capacity
d. All of the above
Q. Select the correct statement.
a. A uniform soil has more strength and stability than a nonuniform soil
b. A uniform soil has less strength and stability than a nonuniform 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