Top 250+ Solved Geotechnical Engineering MCQ Questions Answer
Q. Shear strength of a soil is a unique function of
a. Effective stress only
b. Total stress only
c. Both effective stress and total stress
d. None of the above
Q. 260 g of wet soil was taken in a pycnometer jar of weight 400 g in order to find the moisture content in the soil, with specific gravity of soil particles 2.75. The weight of soil and remaining water filled in pycnometer without air bubbles was 1415 g and the weight of pycnometer filled with water alone was 1275 g. The moisture content in the soil is
a. 24.2 %
b. 18.2 %
c. 53.8 %
d. None of these
Q. The angle that Coulomb's failure envelope makes with the horizontal is called
a. Cohesion
b. Angle of internal friction
c. Angle of repose
d. None of the above
Q. A flow net may be utilised for the determination of
a. Exit gradient
b. Seepage
c. Hydrostatic pressure
d. All the above
Q. The compression index of a soil
a. Decreases with an increase in the liquid limit
b. Increases with an increase in the liquid limit
c. Decreases with an increase in the plastic limit
d. Is not related with plastic limit
Q. Sensitivity of a soil can be defined as
a. Percentage of volume change of soil under saturated condition
b. Ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state
c. Ratio of volume of voids to volume of solids
d. None of the above
Q. The soil moisture driven off by heat, is called
a. Free water
b. Hydroscopic water
c. Gravity water
d. None of these
Q. Plasticity index is defined as the range of water content between
a. Liquid and plastic limit
b. Plastic limit and semi solid limit
c. Semi-solid limit and liquid limit
d. Liquid limit and solid limit
Q. Bishop's method of stability analysis
a. Is more conservative
b. Neglects the effect of forces acting on the sides of the slices
c. Assumes the slip surface as an arc of a circle
d. All of the above
Q. You are given a sample of soil containing coarse grains to determine its water content, you will use
a. Pycnometer
b. Oven-drying method
c. Calcium carbide method
d. Alcohol method
Q. Pick up the incorrect definition from the following:
a. Ratio of the compressive strength of unconfined undisturbed soil to that of remoulded soil, is known as the sensitivity of the soil sample
b. The rotation of soil particles into stable state while remoulding, is known as the thiostropy of soil
c. The water content at which a soil flows, is known plastic limit of the soil
d. None of these
Q. A 600 mm square bearing plate settles by 15 mm in plate load test on a cohesion-less soil under an intensity of loading of 0.2 N/ram². The settlement of a prototype shallow footing 1 m square under the same intensity of loading is
a. 15 mm
b. Between 15 mm and 25 mm
c. 25 mm
d. Greater than 25 mm
Q. The angle between the directions of the failure and the major principal plane, is equal to
a. 90° + effective angle of shearing resistance
b. 90° + half of the angle of shearing resistance
c. 45° - half of the angle of shearing resistance
d. 45° + half of the angle of shearing resistance