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 lateral earth pressure of the soil moves towards the retaining wall indicates

a) Active earth pressure

b) Passive earth pressure

c) Constant

d) All of the above

2 / 30

2. Overconsolidation may be due to

a) The weight of the ice sheet or glacier which is melted away

b) The weight of the landslide which is removed

c) Both (a) and (b) of the above

d) None of the above

3 / 30

3. The shear strength of a soil is

a) Directly proportional to the cohesion of soil

b) Directly proportional to the angle of friction of the soil

c) Directly proportional to the normal stress

d) All of the above

4 / 30

4. The top flow line in the case of seepage flow through an earthen dam has the shape of

a) Parabola

b) Ellipse

c) Hyperbola

d) None of the above

5 / 30

5. Hydrometer readings are corrected for

a) Temperature correction

b) Meniscus correction

c) Both a) and b) of above

d) None of the above

6 / 30

6. For normally consolidated clay deposits, the stability analysis of slope by the following method is appropriate:

a) Friction circle method

b) Swedish circular arc method

c) Stices method

d) None of the above

7 / 30

7. If the soil stays at a place above the parent rock where it is produced, then it is called

a) Stationary soil

b) Static soil

c) Residual soil

d) Immobile soil

8 / 30

8. 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

9 / 30

9. The ratio of settlement at any time t, to the final settlement is called

a) Percentage settlement

b) Partial settlement

c) Degree of consolidation

d) Residual consolidation

10 / 30

10. If the shearing stress is zero on two planes, then the angle between the two planes is

a) 45°

b) 90°

c) 135°

d) 180°

11 / 30

11. Core-cutter method is used for

a) Determining the density of soil

b) Obtaining samples for direct shear test

c) Determining the bearing capacity of soil

d) Compacting soil

12 / 30

12. If s is the focal length of Kozeny's parabola and k is the coefficient of permeability, the seepage flow rate per unit length of the dam is given as

a) q = k.s

b) q = s/k

c) q = k√v

d) q = k/s

13 / 30

13. In soil if the water content is equal to the liquid limit, its relative consistency is

a) 1

b) 10

c) 5

14 / 30

14. The angle between the maximum shear stress plane and the horizontal plane is equal to

a) 15°

b) 30°

c) 45°

d) 50°

15 / 30

15. 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

16 / 30

16. Honeycombed structure is found in

a) Gravels

b) Coarse sands

c) Fine silt and clays

d) Highly plastic clays

17 / 30

17. The seepage force in the soil is

a) Parallel to equipotential line

b) Perpendicular to equipotential line

c) Perpendicular to flow line

d) None of the above

18 / 30

18. Compaction of soil is aimed at

a) Decreasing dry density

b) Increasing porosity

c) Decreasing void ratio

d) Decreasing shear strength

19 / 30

19. The compression resulting from long-term static load and resulting expulsion of water is known as

a) Compaction

b) Inverse swelling

c) Consolidation

d) None of the above

20 / 30

20. The assumption of Rankine's theory of earth pressure is:

a) The soil is semi-finite, homogeneous, dry, and cohesionless

b) Ground surface is a plane that may be inclined or horizontal

c) The back of the wall is vertical and smooth

d) All of the above

21 / 30

21. The coefficient of earth pressure for loose sand having an angle of internal friction of 30° is:

a) 0.5

b) 1/3

c) 3

d) 1

22 / 30

22. The maximum differential settlement in the case of a foundation on clayey soils is:

a) 10 mm

b) 20 mm

c) 30 mm

d) 40 mm

23 / 30

23. Black cotton soil is not suitable for foundations because of its:

a) Black color

b) Low bearing capacity

c) Cohesive particles

d) Swelling and shrinkage nature

24 / 30

24. The direction of seepage is

a) Parallel to equipotential line

b) Perpendicular to equipotential line

c) Parallel to flow line

d) None of the above

25 / 30

25. The most effective method for compacting sand is by using

a) Pneumatic rollers

b) Sheep foot rollers

c) Steel tyred rollers

d) Vibration

26 / 30

26. The ratio of plasticity index to flow index is called

a) Activity ratio

b) Liquidity index

c) Toughness index

d) Shrinkage index

27 / 30

27. Consolidation test of a soil sample is carried out to determine:

a) The void ratio in soil

b) The decrease in the total volume

c) The liquid limit of soil

d) The plastic limit of soil

28 / 30

28. Westergaard's theory is more appropriate for

a) layered soils

b) homogeneous deposits

c) anisotropic soils

d) normally consolidated homogeneous soils

29 / 30

29. Rise of water table in cohesionless soils up to the ground surface reduces the net ultimate bearing capacity approximately by:

a) 90%

b) 80%

c) 50%

d) 40%

30 / 30

30. The shear strength of cohesive soil is equal to

a) C = q/2

b) C = 0.5 q tanΦ

c) C = q

d) C = q tan Φ

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Soil Mechanics Online Test – Paper 2

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