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. In the case of retaining walls, surcharge is:

a) Excess moisture in wall

b) Extra load on the wall

c) Additional load carrying capacity of wall

d) Extra load on the horizontal backfill

2 / 30

2. A plane inclined at an angle to the horizontal at which the soil is expected to stay in the absence of any lateral support is known as:

a) Natural slope line

b) The stable line

c) Repose line

d) All of the above

3 / 30

3. The principal stress is maximum on

a) Minor principal plane

b) Intermediate principal plane

c) Major principal plane

d) None of these

4 / 30

4. Berms are used to:

a) Increase the weight of the dam

b) Reduce seepage losses

c) Increase shear strength

d) Increase factor of safety

5 / 30

5. 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

6 / 30

6. If you are asked to classify soils into 3 categories, which of the following categorizations would you prefer?

a) Clayey, Silty, and Sandy

b) Clayey, Sandy, and Granular

c) Clayey, Silty, and Loamy

d) Coarse-grained, fine-grained, and highly organic

7 / 30

7. 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

8 / 30

8. Peat is composed of

a) Clay and sand

b) Decayed vegetable matter

c) Inorganic silt and silty clay

d) Synthetic chemicals

9 / 30

9. 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

10 / 30

10. The active earth pressure of a soil can be defined as lateral pressure exerted by the soil when

a) The retaining wall tends to move away from the backfill

b) The wall moves into the soil

c) The wall moves relative to the backfill

d) Any of the above

11 / 30

11. For testing a saturated clay for shear strength, the test recommended is

a) Direct shear test

b) Triaxial compression test

c) Unconfined compression test

d) All of the above

12 / 30

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

a) Activity ratio

b) Liquidity index

c) Toughness index

d) Shrinkage index

13 / 30

13. The maximum water content at which a reduction in water content does not cause a decrease in the volume of the soil mass is known as

a) Liquid limit

b) Plastic limit

c) Shrinkage limit

d) Ductile limit

14 / 30

14. The specific gravity of sandy soils/gravel is

a) <1.5

b) <2.0

c) >2.0

d) >2.5

15 / 30

15. The soil having minimum/least bearing capacity is:

a) Moist clay

b) Sandy soil

c) Rock soil

d) Silt clay

16 / 30

16. Void ratio, e, of a soil can

a) Never be greater than one

b) Be equal to zero

c) Be greater than zero

d) Be between 0 and 1

17 / 30

17. 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

18 / 30

18. The pressure-void ratio curve will be

a) Linear when plotted on ordinary paper

b) Linear when plotted on semi-log paper

c) Linear when plotted on log-log paper

d) None of the above

19 / 30

19. The shear strength of cohesive soil is equal to

a) C = q/2

b) C = 0.5 q tanΦ

c) C = q

d) C = q tan Φ

20 / 30

20. 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

21 / 30

21. 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

22 / 30

22. Cohesive soils are generally/normally

a) Plastic and also compressible

b) Elastic and also compressible

c) Plastic but incompressible

d) None of the above

23 / 30

23. Contribution due to skin friction is maximum in:

a) Sands

b) Soft clays

c) Piles resting on rock

d) None of the above

24 / 30

24. Theoretically, the void ratio in soils can have the following values

a) >1

b) <1

c) >0.5

d) All of the above

25 / 30

25. A foundation may be classified as shallow if:

a) Depth is less than 6 m

b) Depth is less than its width

c) Depth is less than 1 m

d) None of the above

26 / 30

26. 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

27 / 30

27. Moisture content of saturated soil equals:

a) 0%

b) 100%

c) 50%

d) 90%

28 / 30

28. A foundation may be classified as spread foundation if:

a) Depth to width ratio is more than 2

b) Depth to width ratio is less than 2

c) Length to width ratio is more than 2

d) Length to width ratio is between 1 and 2

29 / 30

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

a) Cohesive soil

b) Cohesionless soil

c) Marine soil

d) Expansive soil

30 / 30

30. The reduction factor to the bearing capacity of soil due to the water table at a depth equal to the width of the footing below the footing is:

a) 0.25

b) 0.50

c) 0.75

d) 1.00

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Soil Mechanics Online Test – Paper 2

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