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 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

2 / 30

2. The seepage flow through a porous medium is generally

a) Turbulent

b) Supercritical

c) Transitional

d) Laminar

3 / 30

3. The factor of safety of embankments shall be:

a) At least 1.0

b) At least 1.5

c) At least 2.0

d) At least 2.5

4 / 30

4. Inorganic soils with low plasticity are denoted by

a) ML

b) CH

c) MH

d) SH

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5. The passive earth pressure of a soil 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) Any of the above

6 / 30

6. Compaction is done to remove... from the soil.

a) Air

b) Water

c) Soil

d) None of the above

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

a) Clays

b) Silty clays

c) Sandy silts

d) Sands

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8. Cohesive soils:

a) bear high shear strength

b) are more plastic

c) are good for backfill

d) are strong against landslides

9 / 30

9. Silts have the following property

a) Plasticity

b) Limited plasticity

c) Limited or no plasticity

d) Elasticity

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10. Shearing strength of cohesionless soil depends upon

a) Dry density

b) Void ratio

c) Loading rate

d) Normal stress

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11. Plasticity index is obtained as the difference between

a) Liquid limit and shrinkage limit

b) Shrinkage limit and plastic limit

c) Liquid limit and plastic limit

d) None of the above

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12. The seepage force in the soil is

a) Parallel to equipotential line

b) Perpendicular to equipotential line

c) Perpendicular to flow line

d) None of the above

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13. 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

14 / 30

14. The force exerted by flowing water on the sediment particles to cause their motion is called:

a) Eddy force

b) Buoyant force

c) Tractive force

d) Kinematic force

15 / 30

15. In the case of retaining walls, surcharge is:

a) Excess moisture in wall

b) Extra load on the wall

c) Additional load carrying capacity of wall

d) Extra load on the horizontal backfill

16 / 30

16. 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

17 / 30

17. The water content of soils can be accurately determined by

a) Calcium carbide

b) Sand bath

c) Alcohol method

d) Oven drying method

18 / 30

18. 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

19 / 30

19. * 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

20 / 30

20. Specific gravity of soil is

a) Same for clays and sands

b) Determined by hydrometer

c) Less than 2.0 for most soils

d) More than 2.5 for most soils

21 / 30

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

a) 1

b) 1.5

c) 2

d) 2.5

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22. 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

23 / 30

23. The bearing capacity of soil depends upon:

a) Shape and size of the particles

b) Cohesive properties of particles

c) Internal frictional resistance of particles

d) All of the above

24 / 30

24. The saturated density of soil can be expressed as

a) Weight of soil in water to its volume

b) Weight of soil minus weight of equivalent water to volume of soil

c) Weight of soil less weight of water in voids to the volume of solids plus voids in the soil

d) Unit weight of saturated soil

25 / 30

25. The active earth pressure of a soil can be defined as lateral pressure exerted by the soil when

a) The retaining wall tends to move away from the backfill

b) The wall moves into the soil

c) The wall moves relative to the backfill

d) Any of the above

26 / 30

26. 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

27 / 30

27. If a solid suffers a change in volume by the application of external loads but recovers its volume immediately after the load is removed, such a soil is termed as:

a) Compressive soils

b) Plastic solids

c) Elastic soils

d) Perfect soils

28 / 30

28. Allowable bearing pressure for a foundation depends on:

a) Allowable settlement only

b) Ultimate bearing capacity of soil only

c) Both allowable settlement & ultimate bearing capacity of soil

d) None of the above

29 / 30

29. Stability of slopes can be increased by:

a) Adopting gentle slopes

b) Adopting great heights

c) Storing water on one side

d) Constructing on clay deposits

30 / 30

30. The load-carrying capacity of the pile is............due to skin friction.

a) Increases

b) Decreases

c) Constant

d) None of the above

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Soil Mechanics Online Test – Paper 2

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