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 difference between the undisturbed shear strength and remoulded shear strength is known as

a) Thixotropy

b) Dilatancy

c) Remoulding less

d) Degree of sensitivity

2 / 30

2. Cohesionless soil is

a) Sand

b) Silt

c) Clay

d) Clay and silt

3 / 30

3. An agent responsible for the transportation of soil is

a) Wind

b) Water

c) Gravity

d) All of the above

4 / 30

4. A wall constructed to retain the earth from slippage on the hillside of the roadway is called:

a) Breast wall

b) Retaining wall

c) Parapet wall

d) Wing wall

5 / 30

5. A soil that is 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

6 / 30

6. Cement stabilizer is suitable for

a) RCC

b) Masonry

c) Soil stabilization

d) All of the above

7 / 30

7. 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

8 / 30

8. Core-cutter method is used for

a) Determining the density of soil

b) Obtaining samples for direct shear test

c) Determining the bearing capacity of soil

d) Compacting soil

9 / 30

9. California Bearing Ratio test is used:

a) To find the bearing capacity of the soil

b) To find the thickness of a flexible pavement

c) To find the ratio of ultimate bearing capacity to net bearing capacity

d) None of the above

10 / 30

10. A dam is

a) One-dimensional structure

b) Two-dimensional structure

c) Three-dimensional structure

d) None of the above

11 / 30

11. Square root of times fitting method is used for calculating

a) Compression index

b) Coefficient of consolidation

c) Coefficient of compressibility

d) Coefficient of volume compressibility

12 / 30

12. Overturning moment due to the pressure of the soil is 10 KN-m while the resisting moment is 5 KN-m. Find the factor of safety:

a) 2

b) 1

c) 0.5

d) None of the above

13 / 30

13. The specific gravity of sandy soils/gravel is

a) <1.5

b) <2.0

c) >2.0

d) >2.5

14 / 30

14. 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

15 / 30

15. Toe failure is most likely in the case of:

a) Steep slopes

b) Gentle slopes

c) All inclinations

d) Very steep slopes

16 / 30

16. The minimum net pressure intensity causing shear failure of the soil is called:

a) Safe bearing capacity

b) Net ultimate bearing capacity

c) Net bearing capacity

d) Ultimate bearing capacity

17 / 30

17. The difference of the range of water between liquid limit and plastic limit is called

a) Fluidity index

b) Relative consistency

c) Shrinkage index

d) Plasticity index

18 / 30

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

a) Air content

b) Percentage of air voids

c) Percentage voids

d) Degree of saturation

19 / 30

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

a) Increases

b) Decreases

c) Constant

d) None of the above

20 / 30

20. *Coefficient of earth pressure at rest is:

a) Less than active earth pressure but greater than passive earth pressure

b) Greater than active earth pressure but lesser than passive earth pressure

c) Greater than both active and passive earth pressure

d) Lesser than both active and passive earth pressure

21 / 30

21. The behavior of silt is normally governed by

a) Mass energy

b) Surface energy

c) Mass energy and surface energy

d) None of the above

22 / 30

22. Peat is composed of

a) Clay and sand

b) Decayed vegetable matter

c) Inorganic silt and silty clay

d) Synthetic chemicals

23 / 30

23. 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

24 / 30

24. Base failure refers to a failure surface that:

a) Is above the toe of the slope

b) Includes the toe of the slope

c) Is below the toe of the slope

d) None of the above

25 / 30

25. The admixture used in soil stabilization is

a) Cement

b) Lime

c) Bitumen

d) Any of the above

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. A pycnometer is used to determine

a) Specific gravity and dry density

b) Water content and void ratio

c) Water content and specific gravity

d) Dry density and void ratio

28 / 30

28. *Earth pressure acting at a height of ..... in case of inclined surcharge is:

a) h/2 from the base of the wall

b) h/3 from the base of the wall

c) h/4 from the base of the wall

d) h/5 from the base of the wall

29 / 30

29. Black cotton soil is not suitable for foundations because of its:

a) Black color

b) Low bearing capacity

c) Cohesive particles

d) Swelling and shrinkage nature

30 / 30

30. 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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Soil Mechanics Online Test – Paper 2

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