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 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

2 / 30

2. Mechanical stabilization is done by

a) Cement

b) Lime

c) Bitumen

d) Proper grading

3 / 30

3. Pick up the correct sequence of geological cycle for the formation of soil

a) Transportation - Upheaval - Deposition - Weathering

b) Transportation - Deposition - Weathering - Upheaval

c) Weathering - Upheaval - Deposition - Transportation

d) Weathering - Transportation - Deposition - Upheaval

4 / 30

4. 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

5 / 30

5. Units of the coefficient of permeability

a) cm/sec

b) sec/cm

c) cm/sec^2

d) sec^2/cm

6 / 30

6. * 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

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7. The ratio of volume of air void to the volume of voids is known as

a) Air content

b) Wet porosity

c) Percentage voids

d) Degree of saturation

8 / 30

8. Inorganic soils with low plasticity are denoted by

a) ML

b) CH

c) MH

d) SH

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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

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10. Water content is defined as the ratio of

a) Weight of water to weight of solids

b) Weight of solids to weight of water

c) Total amount of water in soil

d) All of the above

11 / 30

11. The shearing strength of a cohesionless soil depends upon:

a) Dry density

b) Rate of loading

c) Confining pressure

d) Nature of loading

12 / 30

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

a) Increases

b) Decreases

c) Constant

d) None of the above

13 / 30

13. 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

14 / 30

14. Three-phase system is concerned with

a) Partially saturated soil

b) Saturated soil

c) Dry soil

d) All of the above

15 / 30

15. The degree of saturation in soils can be defined as the ratio of

a) Water by weight to the dry soil weight

b) Volume of water to the gross volume of soil

c) Volume of water to volume of voids in soil

d) Weight of the water to weight of the soil

16 / 30

16. 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

17 / 30

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

a) Clays

b) Silty clays

c) Sandy silts

d) Sands

18 / 30

18. Pile foundations are normally used in:

a) Soft clayey soil

b) Loose sandy soil

c) Heavy loaded situations

d) When required bearing area is not available

19 / 30

19. * A 'shear stress' is a stress which is applied.......to a face of material.

a) Perpendicularity

b) Parallel

c) Softly

d) With a bang

20 / 30

20. The internal molecular attraction of a soil is known as cohesion:

a) Increases as the moisture content decreases

b) Is more in well-compacted clays

c) Depends upon the external applied load

d) Decreases as the moisture content increases

21 / 30

21. Wedge shape failure is assumed by:

a) Coulomb

b) Rankine

c) Poncelet

d) Terzaghi

22 / 30

22. Which of the following is responsible for the shear resistance in soils?

a) Intergranular friction

b) Cohesion and adhesion between the soil particles

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

d) None of the above

23 / 30

23. Electrical analogy method is used to

a) Find electrical conductivity of soil

b) Draw flow net

c) Find the depth to the water table

d) Find the water content in a soil

24 / 30

24. Which method is quickest to find the water content of soils?

a) Oven dry method

b) Alcohol method

c) Calcium carbide method

d) Sand bath method

25 / 30

25. Who coined the term Soil Mechanics?

a) Terzaghi

b) Cassagrande

c) Newmark

d) Rankine

26 / 30

26. 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

27 / 30

27. 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

28 / 30

28. * 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

29 / 30

29. Stability analysis shall be made considering:

a) Total stresses

b) Normal stresses

c) Effective stresses

d) Shear stresses

30 / 30

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

a) 15°

b) 30°

c) 45°

d) 50°

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Soil Mechanics Online Test – Paper 2

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