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. Inorganic soils with low plasticity are denoted by

a) ML

b) CH

c) MH

d) SH

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 quantity of water seeping through a soil is

a) Proportional to the head of water downstream

b) Proportional to the head of water upstream

c) Proportional to the total head loss

d) None of the above

4 / 30

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

a) Dry density

b) Rate of loading

c) Confining pressure

d) Nature of loading

5 / 30

5. Weathering of soils is caused by

a) Periodical temperature changes

b) Impact and splitting action of flowing water

c) Impact and splitting action of plants and animals

d) All of the above

6 / 30

6. 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

7 / 30

7. The critical exit gradient may occur when

a) Flow is in an upward direction

b) Seepage pressure is in an upward direction

c) Effective pressure is zero

d) All of the above

8 / 30

8. 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

9 / 30

9. 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

10 / 30

10. The angle of internal friction of clay is about

a) 5-20°

b) 24-30°

c) 27-33°

d) 30-35°

11 / 30

11. The ratio of volume of voids to the total volume of the given soil mass is known as

a) Porosity

b) Void ratio

c) Specific gravity

d) Water content

12 / 30

12. Hygroscopic water can be removed by

a) Gravity flow

b) Free flow

c) Heating

d) All of the above

13 / 30

13. The bulk density of soil can be defined as

a) Ratio of the weight of the solids to the volume of solids

b) Ratio of unit weight of soil to that of water

c) Unit weight of soil

d) Unit weight of soil under saturated condition

14 / 30

14. Moisture content of saturated soil equals:

a) 0%

b) 100%

c) 50%

d) 90%

15 / 30

15. Soil transported by water and deposited at the bottom of the lake is known as

a) Alluvial soil

b) Lacustrine soil

c) Loess

d) Dune sand

16 / 30

16. The total stress in a soil is

a) Force per neutral area

b) Force per unit effective area

c) Stress taken by the particles of the soil

d) Stress taken by pure water

17 / 30

17. A foundation may be classified as a strip foundation if:

a) Length is very large

b) Length is very large compared with uniform width

c) Load is applied at long intervals

d) None of the above

18 / 30

18. 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

19 / 30

19. 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°

20 / 30

20. 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

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. If the resultant force at the bottom of the retaining wall lies outside the middle third, the failure will be due to:

a) Crushing

b) Sliding

c) Upthrust

d) Overturing

23 / 30

23. If the resultant force at the face of the retaining wall is much more than frictional resistances at the bottom, the failure will be due to:

a) Crushing

b) Sliding

c) Upthrust

d) Overturning

24 / 30

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

a) 1

b) 1.5

c) 2

d) 2.5

25 / 30

25. Combined footing is generally used when:

a) Number of columns are more than two and are spaced far apart

b) Number of columns are two and are spaced close to each other

c) Number of columns are two and are spaced far apart

d) None of the above

26 / 30

26. Who coined the term Soil Mechanics?

a) Terzaghi

b) Cassagrande

c) Newmark

d) Rankine

27 / 30

27. The angle between the horizontal and the slope of a heap produced by pouring clean dry sand from a small height is known as:

a) the angle of equilibrium

b) the angle of bulk

c) the angle of rest

d) the angle of repose

28 / 30

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

a) Perpendicularity

b) Parallel

c) Softly

d) With a bang

29 / 30

29. 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

30 / 30

30. The curve A, B, and C shown in fig below are respectively the stress-strain curves for stress of

a) Dense sand, clay, and loose sand

b) Dense sand, loose sand, and clay

c) Loose sand, dense sand, and clay

d) Clay, loose sand, and dense sand

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Soil Mechanics Online Test – Paper 2

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