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. Moisture content for the optimum moisture content of silt is

a) 5%

b) 10%

c) 15%

d) 20%

2 / 30

2. Moisture content of saturated soil equals:

a) 0%

b) 100%

c) 50%

d) 90%

3 / 30

3. 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

4 / 30

4. Plasticity needle/Proctor needle is used to determine

a) Plastic limit of the soil used in compaction

b) Penetration resistance to control field compaction

c) Penetration value of bitumen used in road construction

d) Swelling index of black cotton soil

5 / 30

5. The bearing capacity factors (N_c, N_q,) and (N_r) are functions of:

a) Cohesion only

b) Angle of internal friction

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

d) None of the above

6 / 30

6. Cohesive soils are generally/normally

a) Plastic and also compressible

b) Elastic and also compressible

c) Plastic but incompressible

d) None of the above

7 / 30

7. The angle of internal friction of clay is about

a) 5-20°

b) 24-30°

c) 27-33°

d) 30-35°

8 / 30

8. The phreatic line is

a) The u/s face of the earth dam

b) The d/s face of the earth dam

c) The top flow line

d) None of the above

9 / 30

9. The reduction factor to the bearing capacity of soil due to the water table just below the footing is:

a) 0.25

b) 0.50

c) 0.75

d) 1.00

10 / 30

10. 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

11 / 30

11. Angle of internal friction of silty sand

a) 5-20°

b) 24-30°

c) 27-33°

d) 30-35°

12 / 30

12. 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

13 / 30

13. Consolidation is a process involving

a) Sudden compression of soil

b) Tilting and failure of the structure

c) Abnormal sinking of foundation

d) Gradual expulsion of pore water

14 / 30

14. 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

15 / 30

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

a) Air

b) Water

c) Soil

d) None of the above

16 / 30

16. 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

17 / 30

17. The bearing capacity of a soil depends upon:

a) Size of the particles

b) Shape of the particles

c) Cohesive properties of particles

d) All of the above

18 / 30

18. Bearing capacity of soil primarily depends upon:

a) Air void

b) Water content

c) Chemical

d) Rate of loading

19 / 30

19. A soil sample has the following characteristics: S-50%, G-2.6, W-30%, find the void ratio, e

a) 1.56

b) 2.56

c) 0.56

d) 5.61

20 / 30

20. The triaxial apparatus is usually used for

a) Unconsolidated-untrained test

b) Consolidated-untrained test

c) Drained test

d) All of the above

21 / 30

21. Specific gravity of solid particles is determined in a laboratory with:

a) Shrinkage Limit Method

b) Gas Jar Method

c) Density Bottle Method

d) All of the above

22 / 30

22. 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

23 / 30

23. 'Drift' is the material picked up, mixed, disintegrated, transported, and repositioned by

a) Wind

b) Gravitational force

c) Glacier water

d) All of the above

24 / 30

24. The well foundation is normally used under:

a) Industrial buildings

b) Structures on river beds

c) Tall buildings

d) Offshore wells

25 / 30

25. 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

26 / 30

26. If the water content of a fully saturated soil mass is 100%, then the voids will be

a) Less than the specific gravity of soil

b) Equal to the specific gravity of soil

c) Greater than the specific gravity of soil

d) Independent of the specific gravity of soil

27 / 30

27. The maximum size of a clay particle is

a) 0.1mm

b) 0.3mm

c) 0.002mm

d) 0.005mm

28 / 30

28. The law which states that the velocity of flow through a porous medium is directly proportional to the hydraulic gradient is

a) Newton's law

b) Stokes's law

c) Darcy's law

d) Reynolds's law

29 / 30

29. 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

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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