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. 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

2 / 30

2. 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

3 / 30

3. 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

4 / 30

4. The types of compaction suitable for cohesionless soil having large thickness are

a) Roller

b) Rammer

c) Vibrator

d) Vibrofloatation

5 / 30

5. The permeability of a soil deposit in situ can be best obtained by

a) Falling head permeameter

b) Constant head permeameter

c) Pumping test

d) None of the above

6 / 30

6. The slope of the flow curve obtained in the liquid limit test is called

a) Liquidity index

b) Plasticity index

c) Toughness index

d) Flow index

7 / 30

7. Consolidation theory was enunciated by

a) Rankine

b) Westergaard

c) Skempton

d) Terzaghi

8 / 30

8. 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

9 / 30

9. The types of compaction suitable in a congested area for cohesive as well as cohesionless soil are

a) Roller

b) Rammer

c) Vibrator

d) Vibrofloatation

10 / 30

10. The critical exit gradient of the seepage of water in soils

a) Increases with a decrease in the specific gravity

b) Increases with an increase in the specific gravity

c) Decreases with an increase in the liquid limit

d) None of the above

11 / 30

11. The specific gravity of sandy soils/gravel is

a) <1.5

b) <2.0

c) >2.0

d) >2.5

12 / 30

12. Stability analysis shall be made considering:

a) Total stresses

b) Normal stresses

c) Effective stresses

d) Shear stresses

13 / 30

13. The most effective method for compacting sand is by using

a) Pneumatic rollers

b) Sheep foot rollers

c) Steel tyred rollers

d) Vibration

14 / 30

14. Berms are used to:

a) Increase the weight of the dam

b) Reduce seepage losses

c) Increase shear strength

d) Increase factor of safety

15 / 30

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

a) Onion

b) Potato

c) Pumpkin

d) Turnip

16 / 30

16. Three-phase system is concerned with

a) Partially saturated soil

b) Saturated soil

c) Dry soil

d) All of the above

17 / 30

17. A foundation may be classified as continuous foundation if:

a) Depth to width ratio is more than 2

b) Length to width ratio is more than 2

c) Depth to width ratio is equal to 2

d) Length to width ratio is less than 2

18 / 30

18. Wedge shape failure is assumed by:

a) Coulomb

b) Rankine

c) Poncelet

d) Terzaghi

19 / 30

19. 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

20 / 30

20. The soil transported by wind and deposited is called:

a) Aeolian soil

b) Marine soil

c) Alluvial soil

d) Lacustrine soil

21 / 30

21. Electrical analogy method is used to

a) Find electrical conductivity of soil

b) Draw flow net

c) Find the depth to the water table

d) Find the water content in a soil

22 / 30

22. *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

23 / 30

23. 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

24 / 30

24. In a flow net, which of the following statements is true?

a) Flow lines and equipotential lines intersect at oblique angles

b) Flow lines and equipotential lines intersect orthogonally

c) Flow rate through each flow channel is different

d) The head along each flow line is constant

25 / 30

25. 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

26 / 30

26. 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

27 / 30

27. Moisture content of saturated soil equals:

a) 0%

b) 100%

c) 50%

d) 90%

28 / 30

28. The angle between the maximum shear stress plane and the horizontal plane is equal to

a) 15°

b) 30°

c) 45°

d) 50°

29 / 30

29. Negative skin friction:

a) Increases the load-carrying capacity of the pile

b) Decreases the load-carrying capacity of the pile

c) Neither increases nor decreases the load-carrying capacity of the pile

d) All of the above

30 / 30

30. 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

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Soil Mechanics Online Test – Paper 2

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