Soil Mechanics Online Test – Paper 2

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Vikash chaudhary

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Total Questions: 30
Time Allotted: 30 minutes
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1 / 30

1. The types of soil, which contain particles of almost the same size

a) Uniform soil

b) Uniformly graded soil

c) Skip-graded soil

d) Gap-graded soil

2 / 30

2. The process of compaction may involve

a) Rolling

b) Tamping

c) Vibration

d) Any of the above

3 / 30

3. Stability analysis shall be made considering:

a) Total stresses

b) Normal stresses

c) Effective stresses

d) Shear stresses

4 / 30

4. Berms are used to:

a) Increase the weight of the dam

b) Reduce seepage losses

c) Increase shear strength

d) Increase factor of safety

5 / 30

5. The behavior of silt is normally governed by

a) Mass energy

b) Surface energy

c) Mass energy and surface energy

d) None of the above

6 / 30

6. The base width of the retaining wall is B. What is the maximum permissible eccentricity if the wall should not fail in tension?

a) B/3

b) 2B/3

c) B/6

d) B/2

7 / 30

7. Shearing strength of cohesionless soil depends upon

a) Dry density

b) Void ratio

c) Loading rate

d) Normal stress

8 / 30

8. The change of moisture content of soils changes

a) Angle of repose

b) Cohesive strength

c) Amount of compaction required

d) Any of the above

9 / 30

9. The seepage flow through a porous medium is generally

a) Turbulent

b) Supercritical

c) Transitional

d) Laminar

10 / 30

10. The ultimate B.C. of a soil can be defined as:

a) Ultimate load on the bearing area

b) Safe load on the bearing area

c) Load at which the soil fails

d) Load beyond which the soil should not be loaded

11 / 30

11. Which sequence is correct regarding different coefficients of friction in increasing order?

a) Kp-Ka-Ko

b) Ka-Ko-Kp

c) Ko-Kp-Ka

d) Kp-Ko-Ka

12 / 30

12. The length/diameter ratio of cylindrical specimens used in a triaxial test is generally

a) 1

b) 1.5

c) 2

d) 2.5

13 / 30

13. According to Terzaghi's theory, the ultimate B.C., at ground surface for a purely cohesive soil and for a smooth base of a strip footing is:

a) 2.57c

b) 5.14c

c) 10.28c

d) 12.0c

14 / 30

14. The bearing capacity of soil depends upon:

a) Shape and size of the particles

b) Cohesive properties of particles

c) Internal frictional resistance of particles

d) All of the above

15 / 30

15. The critical exit gradient of the seepage of water in a soil is

a) (1-e) / (G-1)

b) (G+e) / (1+e)

c) (G-1)/(1+e)

d) None of the above

16 / 30

16. Westergaard's theory is more appropriate for

a) layered soils

b) homogeneous deposits

c) anisotropic soils

d) normally consolidated homogeneous soils

17 / 30

17. * When water content in a soil is reduced beyond the shrinkage limit, the soil will be:

a) Solid state

b) Liquid state

c) Semi-solid state

d) Plastic state

18 / 30

18. The relation between dry density (ρd), bulk density (ρ), and water content (w) is

a) ρ = ρd / (1 + w)

b) ρd = ρ / (1 + w)

c) w = ρ / (1 + ρd)

d) w = ρd / (1 + ρ)

19 / 30

19. Stability of slopes can be increased by:

a) Adopting gentle slopes

b) Adopting great heights

c) Storing water on one side

d) Constructing on clay deposits

20 / 30

20. The u/s face of an earthen dam is

a) An equipotential line

b) A phreatic line

c) A flow line

d) None of the above

21 / 30

21. A vertical wall is subjected to a liquid pressure on its one side, the total pressure on the wall acts at a distance of:

a) H/3

b) H/2

c) 2H/3

d) 3H/4

22 / 30

22. The active earth pressure of a soil can be defined as lateral pressure exerted by the soil when

a) The retaining wall tends to move away from the backfill

b) The wall moves into the soil

c) The wall moves relative to the backfill

d) Any of the above

23 / 30

23. Which of the following soils will have the least value of the safe load?

a) Sandstone

b) Limestone

c) Moorum

d) Soft chalk

24 / 30

24. A foundation may be classified as deep if:

a) Depth to width ratio is more than 2

b) Depth to width ratio is less than 2

c) Length to width ratio is more than 2

d) Length to width ratio is between 1 and 2

25 / 30

25. The maximum pressure which a soil can carry without shear failure is called:

a) Safe bearing capacity

b) Net ultimate bearing capacity

c) Net bearing capacity

d) Ultimate bearing capacity

26 / 30

26. The process of improving the engineering properties of the soil and thus making it more stable is known as

a) Compaction

b) Consolidation

c) Stabilization

d) None of the above

27 / 30

27. If the failure of a finite slope occurs through the toe, it is known as:

a) Slope failure

b) Base failure

c) Face failure

d) Toe failure

28 / 30

28. The ratio of weight of water to the weight of solids in a given mass of soil is known as

a) Void ratio

b) Porosity

c) Specific gravity

d) Water content

29 / 30

29. Well foundation in sandy soils derive their bearing capacity from:

a) Skin friction

b) Point bearing

c) Uplift

d) Skin friction & point bearing

30 / 30

30. Combined footing is generally used when:

a) Number of columns are more than two and are spaced far apart

b) Number of columns are two and are spaced close to each other

c) Number of columns are two and are spaced far apart

d) None of the above

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Soil Mechanics Online Test – Paper 2

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