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. Soils are basically

a) Organic materials

b) Inorganic materials

c) Mineral materials

d) Organic and inorganic materials

2 / 30

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

a) Clays

b) Silty clays

c) Sandy silts

d) Sands

3 / 30

3. Generally, soils are considered as

a) Single-phase system

b) Two-phase system

c) Three-phase system

d) None of the above

4 / 30

4. 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

5 / 30

5. 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

6 / 30

6. A foundation may be classified as shallow if:

a) Depth is less than 6 m

b) Depth is less than its width

c) Depth is less than 1 m

d) None of the above

7 / 30

7. The slope of the flow curve obtained in the liquid limit test is called

a) Liquidity index

b) Plasticity index

c) Toughness index

d) Flow index

8 / 30

8. In Rankine's earth pressure theory, the following assumption is made:

a) Wall face is rough and vertical

b) Backfill is cohesive soil

c) Wall face is smooth and vertical

d) Elastic equilibrium is satisfied

9 / 30

9. The seepage force is proportional to

a) Head loss

b) Flow net

c) Head at upstream

d) Equipotential gradient

10 / 30

10. Cohesive soils are generally/normally

a) Plastic and also compressible

b) Elastic and also compressible

c) Plastic but incompressible

d) None of the above

11 / 30

11. Void ratio, e, of a soil can

a) Never be greater than one

b) Be equal to zero

c) Be greater than zero

d) Be between 0 and 1

12 / 30

12. Theoretically, the void ratio in soils can have the following values

a) >1

b) <1

c) >0.5

d) All of the above

13 / 30

13. The ultimate bearing capacity of frictionless soils is:

a) 4.5c to 6c

b) 2c to 4c

c) 1c to 3c

d) 2c to 5c

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. Saturated soil is concerned with

a) Two-phase system

b) Three-phase system

c) One-phase system

d) All of the above

16 / 30

16. 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

17 / 30

17. The structure that derives its stability due to self-weight is:

a) Sheet pile wall

b) Bulkhead

c) Cantilever retaining wall

d) Masonry retaining wall

18 / 30

18. Cohesive soils:

a) bear high shear strength

b) are more plastic

c) are good for backfill

d) are strong against landslides

19 / 30

19. The maximum water content at which a reduction in water content does not cause a decrease in the volume of the soil mass is known as

a) Liquid limit

b) Plastic limit

c) Shrinkage limit

d) Ductile limit

20 / 30

20. 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

21 / 30

21. Consolidation is a process involving

a) Sudden compression of soil

b) Tilting and failure of the structure

c) Abnormal sinking of foundation

d) Gradual expulsion of pore water

22 / 30

22. The maximum size of a clay particle is

a) 0.1mm

b) 0.3mm

c) 0.002mm

d) 0.005mm

23 / 30

23. The difference between total pressure and pore water pressure is known as

a) Major principal stress

b) Minor principal stress

c) Effective stress

d) None of the above

24 / 30

24. The minimum water content at which the soil just begins to crumble when rolled into threads 3 mm in diameter is known as

a) Shrinkage limit

b) Plastic limit

c) Liquid limit

d) Consistency limit

25 / 30

25. Compaction of soil is aimed at

a) Decreasing dry density

b) Increasing porosity

c) Decreasing void ratio

d) Decreasing shear strength

26 / 30

26. The percentage of the porosity of loose sand is in the range of

a) 5 to 15%

b) 15 to 30%

c) 30 to 40%

d) 40 to 50%

27 / 30

27. 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

28 / 30

28. The maximum dry density occurs at a particular water content which is known as

a) Optimum moisture content

b) Maximum moisture content

c) Low moisture content

d) Water content

29 / 30

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

a) Sandstone

b) Limestone

c) Moorum

d) Soft chalk

30 / 30

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

a) 1

b) 10

c) 5

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Soil Mechanics Online Test – Paper 2

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