Soil Mechanics Online Test - Paper 2

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Vikash chaudhary

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Total Questions: 30
Time Allotted: 30 minutes
Passing Score: 50%
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1 / 30

1. Cohesion is defined as:

a) Attraction of molecules of the same material

b) Attraction of molecules of different materials

c) Both of the above

d) None of the above

2 / 30

2. In hydrometer analysis, the principle used

a) Newton's law

b) Darcy's law

c) Stoke's law

d) Rehbann's law

3 / 30

3. Silts have the following property

a) Plasticity

b) Limited plasticity

c) Limited or no plasticity

d) Elasticity

4 / 30

4. Flow lines and equipotential lines are

a) Parallel to each other

b) Perpendicular to each other

c) Not intersecting lines

d) Intersecting lines at 90°

5 / 30

5. The failure plane

a) Carries maximum shear stress

b) Does not carry maximum shear stress

c) Carries minimum shear stress

d) None of the above

6 / 30

6. Piping in soils is due to

a) Low exit gradient

b) Erosion of subsoil by high velocity of seepage flow

c) Leakage of water through pipes laid in dams

d) Passage of water through well-connected pores in soil.

7 / 30

7. 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

8 / 30

8. The phreatic line is

a) The u/s face of the earth dam

b) The d/s face of the earth dam

c) The top flow line

d) None of the above

9 / 30

9. The process of compaction may involve

a) Rolling

b) Tamping

c) Vibration

d) Any of the above

10 / 30

10. Bleeder wells are required to

a) Increase discharge from the main well

b) Store drainage water

c) Collect seepage water in dams

d) Relieve pressure in impervious layers

11 / 30

11. The bearing capacity of soil primarily depends on:

a) Depends on the size of the footing

b) Load intensity

c) Depends on the load

d) Rate of loading

12 / 30

12. * The shear resistance between particles is provided by:

a) Terzaghi's

b) Pairwise

c) Adhesive

d) Broken

13 / 30

13. A phreatic line is defined as the line within a dam section below which there are

a) Positive equipotential lines

b) Positive hydrostatic pressure

c) Negative hydrostatic pressure

d) Negative equipotential lines

14 / 30

14. Total lateral earth pressure is proportional to

a) Depth of the soil

b) Square of the depth of the soil

c) Angle of internal friction of the soil

d) None of the above

15 / 30

15. The shear strength of a soil

a) Is directly proportional to the depth of the soil

b) Is directly proportional to the angle of repose of the soil

c) Increases with normal stress

d) Decreases with an increase in the normal stress

16 / 30

16. When a static load is applied, the consolidation is fast in the case of

a) Clays

b) Silty clays

c) Sandy silts

d) Sands

17 / 30

17. A dam is

a) One-dimensional structure

b) Two-dimensional structure

c) Three-dimensional structure

d) None of the above

18 / 30

18. The difference between the undisturbed shear strength and remoulded shear strength is known as

a) Thixotropy

b) Dilatancy

c) Remoulding less

d) Degree of sensitivity

19 / 30

19. The angle of internal friction for cohesive soils is equal to:

a) Zero

b) 30°

c) 45°

d) 15°

20 / 30

20. Angle of Internal friction is minimum for

a) angular grained loose soil

b) angular grained dense soil

c) round drained loose soil

d) clay

21 / 30

21. The safe B.C. of a soil can be defined as:

a) Ultimate load on the bearing area

b) Load intensity beyond which the soil should not be loaded

c) Load at which the soil fails

d) Load beyond which the soil yields

22 / 30

22. The void ratio of soil is

a) The ratio of voids to solids in volume

b) The ratio of voids to gross volume

c) The ratio of solids to voids in volume

d) The ratio of solid volume to gross volume

23 / 30

23. Flow path/flow channel is

a) The space between two adjacent flow lines

b) Direction of flow

c) The space between two equipotential lines

d) None of the above

24 / 30

24. The permeability of a soil deposit in situ can be best obtained by

a) Falling head permeameter

b) Constant head permeameter

c) Pumping test

d) None of the above

25 / 30

25. For a well-graded soil, the coefficient of curvature will be between

a) 1 and 10

b) 2 and 8

c) 3 and 7

d) 1 and 3

26 / 30

26. Bearing capacity of soil primarily depends upon:

a) Air void

b) Water content

c) Chemical

d) Rate of loading

27 / 30

27. Talus' is the soil transported by

a) Wind

b) Water

c) Glacier

d) Gravitational force

28 / 30

28. The quantity of seepage of water in the soil is

a) Proportional to the coefficient of permeability

b) Proportional to the head of the water at downstream

c) Inversely proportional to the coefficient of permeability

d) Inversely proportional to the head of the water at downstream

29 / 30

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

a) 1

b) 1.5

c) 2

d) 2.5

30 / 30

30. Compaction of soil is aimed at

a) Decreasing dry density

b) Increasing porosity

c) Decreasing void ratio

d) Decreasing shear strength

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Soil Mechanics Online Test – Paper 2

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