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. 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

2 / 30

2. 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

3 / 30

3. Saturated soil is concerned with

a) Two-phase system

b) Three-phase system

c) One-phase system

d) All of the above

4 / 30

4. 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

5 / 30

5. Uniformity coefficient of a soil is:

a) always less than 1

b) always equal to 1

c) equal to or less than 1

d) equal or greater than 1

6 / 30

6. For normally consolidated clay deposits, the stability analysis of slope by the following method is appropriate:

a) Friction circle method

b) Swedish circular arc method

c) Stices method

d) None of the above

7 / 30

7. Wedge shape failure is assumed by:

a) Coulomb

b) Rankine

c) Poncelet

d) Terzaghi

8 / 30

8. The finest size of soil particle is

a) Clay

b) Silt

c) Sand

d) Cobble

9 / 30

9. 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

10 / 30

10. The position of the backfill lies above a horizontal plane at the elevation of the top of the structure is known as:

a) Surcharge

b) Surcharge angle

c) Extra load

d) Failure load

11 / 30

11. Cohesionless soil is

a) Sand

b) Silt

c) Clay

d) Clay and silt

12 / 30

12. Chemical weathering occurs because of

a) Oxidation

b) Carbonation

c) Hydration

d) All of the above

13 / 30

13. The process of compaction may involve

a) Rolling

b) Tamping

c) Vibration

d) Any of the above

14 / 30

14. *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

15 / 30

15. Bearing capacity of soil primarily depends upon:

a) Air void

b) Water content

c) Chemical

d) Rate of loading

16 / 30

16. The bottom plug in well foundation is used:

a) To seal off the water

b) For stable resting

c) To transfer load from the steining to the soil

d) Create a working place in the well

17 / 30

17. 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

18 / 30

18. 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

19 / 30

19. A decrease in water content results in a reduction of the volume of a soil in

a) Liquid state

b) Plastic state

c) Semi-liquid state

d) All of the above

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. The shape & structure of an isobar is like a/an

a) Onion

b) Potato

c) Pumpkin

d) Turnip

22 / 30

22. For a well-graded soil, the coefficient of curvature will be between

a) 1 and 10

b) 2 and 8

c) 3 and 7

d) 1 and 3

23 / 30

23. 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

24 / 30

24. The ratio of plasticity index to flow index is called

a) Activity ratio

b) Liquidity index

c) Toughness index

d) Shrinkage index

25 / 30

25. The water content of soils is defined as the ratio of

a) Volume of water to that of voids

b) Weight of water to the dry soil weight

c) Volume of water to the gross volume of soil

d) Weight of water to that of the soil

26 / 30

26. 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

27 / 30

27. The soil sample contains a volume of void 0.2 and a volume of soil solid is 0.30 then find the void ratio & porosity of soil

a) 0.67, 0.40

b) 2, 0.67

c) 0.67, 0.80

d) 0.80, 0.67

28 / 30

28. The thickness of adsorbed layers of soil is measured in

a) Angstroms

b) cm

c) mm

d) Micron

29 / 30

29. 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°

30 / 30

30. A vertical wall is subjected to a liquid pressure on its one side, the total pressure on the wall acts at a distance of:

a) H/3

b) H/2

c) 2H/3

d) 3H/4

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Soil Mechanics Online Test – Paper 2

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