Soil Mechanics Online Test - Paper 2

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Vikash chaudhary

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Total Questions: 30
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1 / 30

1. Earth pressure at rest can be defined as lateral pressure exerted by the soil when the retaining wall tends to

a) Move away from the backfill

b) No movement relative to the backfill

c) Move into the soil

d) All of the above

2 / 30

2. 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

3 / 30

3. If the coefficient of permeability of a soil is 0.08 cm/sec, that soil will be

a) Clay

b) Silt

c) Sand

d) Gravel

4 / 30

4. One of the graphical methods for earth pressure determination is:

a) Newmark's influence chart method

b) Mohr diagram method

c) Culmann's method

d) Taylor's method

5 / 30

5. Soil which contains particles of different sizes in good proportion is called

a) Uniform soil

b) Well-graded soil

c) Consistent soil

d) None of the above

6 / 30

6. Plasticity needle/Proctor needle is used to determine

a) Plastic limit of the soil used in compaction

b) Penetration resistance to control field compaction

c) Penetration value of bitumen used in road construction

d) Swelling index of black cotton soil

7 / 30

7. The critical exit gradient of the seepage of water in soils is

a) Directly proportional to the void ratio

b) Increases with a decrease in void ratio

c) Increases with a decrease in specific gravity

d) Inversely proportional to the specific gravity

8 / 30

8. Raft foundation is a type of:

a) Deep foundation

b) Shallow foundation

c) Foundation under water

d) None of the above

9 / 30

9. The well in well foundation:

a) Is normally left empty

b) Filled with earth and consolidated

c) Filled with water

d) Filled with sand and consolidated on

10 / 30

10. A clay deposit that is not fully consolidated under the existing overburden pressure is known as

a) Normally consolidated soil

b) Overconsolidated soil

c) Underconsolidated soil

d) None of the above

11 / 30

11. 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

12 / 30

12. In hydrometer analysis, the principle used

a) Newton's law

b) Darcy's law

c) Stoke's law

d) Rehbann's law

13 / 30

13. 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

14 / 30

14. Soil in which some of the intermediate size particles are missing is known as

a) Poorly graded soil

b) Non-uniform soil

c) Ill-proportioned soil

d) Skip-graded soil

15 / 30

15. An agent responsible for the transportation of soil is

a) Wind

b) Water

c) Gravity

d) All of the above

16 / 30

16. The well foundation is normally used under:

a) Industrial buildings

b) Structures on river beds

c) Tall buildings

d) Offshore wells

17 / 30

17. Most of the shear tests are done in equipment which is:

a) stress controlled

b) strain controlled

c) drainage controlled

d) volume controlled

18 / 30

18. 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

19 / 30

19. * For a properly designed footing, the bearing stress must be less than the bearing capacity, which is the bearing stress that causes a ......... failure within the foundation soil.

a) Tensile

b) Expected

c) Unexpected

d) Shear

20 / 30

20. Which of the following statements is true?

a) In a dry soil, all the voids are filled with air.

b) In a saturated soil, all the voids are filled with water.

c) In a partly saturated soil, the voids are occupied by both air and water.

d) All of the above

21 / 30

21. Terzaghi's theory of one-dimensional consolidation assumes:

a) Soil is homogeneous and fully saturated

b) Water and soil particles are incompressible

c) Deformation of the soil is entirely due to a change in volume

d) All of the above

22 / 30

22. Negative skin friction affects the load carrying capacity of the pile by:

a) Increases

b) Decreases

c) Constant

d) None of the above

23 / 30

23. The rate of consolidation

a) Increases with a decrease in temperature

b) Increases with an increase in temperature

c) Independent of temperature

d) None of the above

24 / 30

24. The property of the soil which allows water to flow through the soil is known as

a) Capillary

b) Permeability

c) Fluidity

d) Viscosity

25 / 30

25. Falling head permeability test is preferable when the soil sample is

a) Clayey

b) Silty sand

c) Sandy

d) Sandy gravel

26 / 30

26. Number of blows required to penetrate the sampler & cone for a depth of ...&... is known as penetration number

a) 30cm & 20cm

b) 20cm & 30cm

c) 40cm & 50cm

d) 50cm & 40cm

27 / 30

27. For testing a saturated clay for shear strength, the test recommended is

a) Direct shear test

b) Triaxial compression test

c) Unconfined compression test

d) All of the above

28 / 30

28. The functional equation for specific gravity (G), water content (w), void ratio (e), and degree of saturation (Sr) is

a) w = SrG / e

b) e = Srw / G

c) e = wG / Sr

d) G = Swr / e

29 / 30

29. Mechanical stabilization is done by

a) Cement

b) Lime

c) Bitumen

d) Proper grading

30 / 30

30. The law which states that the velocity of flow through a porous medium is directly proportional to the hydraulic gradient is

a) Newton's law

b) Stokes's law

c) Darcy's law

d) Reynolds's law

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Soil Mechanics Online Test – Paper 2

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