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. 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

2 / 30

2. To what category do the gravel and sand belong?

a) Cohesive soil

b) Cohesionless soil

c) Marine soil

d) Expansive soil

3 / 30

3. 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

4 / 30

4. The rate of consolidation

a) Increases with a decrease in temperature

b) Increases with an increase in temperature

c) Independent of temperature

d) None of the above

5 / 30

5. Bearing capacity of soils depends on:

a) Physical characteristics of soil particles

b) Moisture content of soil

c) Both of the above

d) None of the above

6 / 30

6. The critical exit gradient of the seepage of water in soils is

a) Directly proportional to the void ratio

b) Increases with a decrease in void ratio

c) Increases with a decrease in specific gravity

d) Inversely proportional to the specific gravity

7 / 30

7. As sheet pile walls are embedded in soil, for the design of:

a) Active earth pressure only

b) Earth pressure at rest only

c) Passive earth pressure only

d) Active and passive earth pressure both considered

8 / 30

8. Bearing capacity of soil is determined by:

a) Plate load test

b) Standard cone test

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

d) None of the above

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9. 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

10 / 30

10. The well in well foundation:

a) Is normally left empty

b) Filled with earth and consolidated

c) Filled with water

d) Filled with sand and consolidated on

11 / 30

11. If s is the focal length of Kozeny's parabola and k is the coefficient of permeability, the seepage flow rate per unit length of the dam is given as

a) q = k.s

b) q = s/k

c) q = k√v

d) q = k/s

12 / 30

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

a) Porosity

b) Void ratio

c) Specific gravity

d) Water content

13 / 30

13. A grillage foundation is used under:

a) Heavy load-bearing wall

b) Set of columns

c) Combined footing

d) Heavy loaded situations

14 / 30

14. 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

15 / 30

15. Combined footing is generally used when:

a) Number of columns are more than two and are spaced far apart

b) Number of columns are two and are spaced close to each other

c) Number of columns are two and are spaced far apart

d) None of the above

16 / 30

16. The degree of saturation, Sr, of soil in percentage has a value

a) Sr > 0

b) Sr ≤ 0

c) 0 < S < 100

d) 0 ≤ S ≤ 100

17 / 30

17. Bearing capacity of soil primarily depends upon:

a) Air void

b) Water content

c) Chemical

d) Rate of loading

18 / 30

18. In the modified Proctor test, the drop height of the rammer is

a) 30cm

b) 45cm

c) 60cm

d) 75cm

19 / 30

19. Peat is composed of

a) Clay and sand

b) Decayed vegetable matter

c) Inorganic silt and silty clay

d) Synthetic chemicals

20 / 30

20. 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

21 / 30

21. The compression resulting from long-term static load and resulting expulsion of water is known as

a) Compaction

b) Inverse swelling

c) Consolidation

d) None of the above

22 / 30

22. The void ratio of soil is

a) The ratio of voids to solids in volume

b) The ratio of voids to gross volume

c) The ratio of solids to voids in volume

d) The ratio of solid volume to gross volume

23 / 30

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

a) Air

b) Water

c) Soil

d) None of the above

24 / 30

24. Three phase diagram of soil represents

a) Solids, pebbles, and clay

b) Dust, fine sand, and coarse sand

c) Solids, water, and air

d) Solid volume and mass

25 / 30

25. The ratio of plasticity index to clay fraction is known as

a) Activity ratio or number

b) Flow index

c) Liquidity index

d) Toughness index

26 / 30

26. The difference between plastic limit and shrinkage limit is called

a) Fluidity index

b) Relative consistency

c) Plasticity index

d) Shrinkage index

27 / 30

27. Overconsolidation may be due to

a) The weight of the ice sheet or glacier which is melted away

b) The weight of the landslide which is removed

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

d) None of the above

28 / 30

28. Stability analysis shall be made considering:

a) Total stresses

b) Normal stresses

c) Effective stresses

d) Shear stresses

29 / 30

29. The u/s face of an earthen dam is

a) An equipotential line

b) A phreatic line

c) A flow line

d) None of the above

30 / 30

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

a) Pneumatic rollers

b) Sheep foot rollers

c) Steel tyred rollers

d) Vibration

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Soil Mechanics Online Test – Paper 2

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