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. The quantity of water seeping through a soil is

a) Proportional to the head of water downstream

b) Proportional to the head of water upstream

c) Proportional to the total head loss

d) None of the above

2 / 30

2. In an undrained plastic clay, the shear strength is due to

a) Internal friction

b) Cohesion

c) Inter-granular friction

d) None of the above

3 / 30

3. Cohesion of soil may

a) Not be affected due to the moisture content

b) Increases as the moisture content increases

c) Decreases as the moisture content decreases

d) More in well-compacted solids

4 / 30

4. Angle of internal friction of silty sand

a) 5-20°

b) 24-30°

c) 27-33°

d) 30-35°

5 / 30

5. Hygroscopic water can be removed by

a) Gravity flow

b) Free flow

c) Heating

d) All of the above

6 / 30

6. Plasticity index is obtained as the difference between

a) Liquid limit and shrinkage limit

b) Shrinkage limit and plastic limit

c) Liquid limit and plastic limit

d) None of the above

7 / 30

7. Angle of Internal friction is minimum for

a) angular grained loose soil

b) angular grained dense soil

c) round drained loose soil

d) clay

8 / 30

8. 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

9 / 30

9. * A 'shear stress' is a stress which is applied.......to a face of material.

a) Perpendicularity

b) Parallel

c) Softly

d) With a bang

10 / 30

10. Stability of slopes can be increased by:

a) Adopting gentle slopes

b) Adopting great heights

c) Storing water on one side

d) Constructing on clay deposits

11 / 30

11. 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

12 / 30

12. The property of the soil which allows water to flow through the soil is known as

a) Capillary

b) Permeability

c) Fluidity

d) Viscosity

13 / 30

13. 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

14 / 30

14. The degree of saturation in soils can be defined as the ratio of

a) Water by weight to the dry soil weight

b) Volume of water to the gross volume of soil

c) Volume of water to volume of voids in soil

d) Weight of the water to weight of the soil

15 / 30

15. Soil in which some of the intermediate size particles are missing is known as

a) Poorly graded soil

b) Non-uniform soil

c) Ill-proportioned soil

d) Skip-graded soil

16 / 30

16. The most suitable method for increasing the bearing capacity of black cotton soil is:

a) Watering the surface of the soil

b) Compacting the soil

c) Replacement of black cotton soil by sand

d) Increasing the depth

17 / 30

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

a) Air

b) Water

c) Soil

d) None of the above

18 / 30

18. 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

19 / 30

19. If the failure of a finite slope occurs through the toe, it is known as:

a) Slope failure

b) Base failure

c) Face failure

d) Toe failure

20 / 30

20. The bearing capacity of soil primarily depends on:

a) Depends on the size of the footing

b) Load intensity

c) Depends on the load

d) Rate of loading

21 / 30

21. The maximum dry density occurs at a particular water content which is known as

a) Optimum moisture content

b) Maximum moisture content

c) Low moisture content

d) Water content

22 / 30

22. Which is the correct definition of soil in the geotechnical engineer's point of view?

a) Soil is the top surface of the earth where plants can grow.

b) Soil is the unconsolidated material consisting of particles produced by the disintegration of rock, which may or may not contain organic matter.

c) Soil is the relatively thin surface zone that can contain moisture.

d) None of the above.

23 / 30

23. Honeycombed structure is found in

a) Gravels

b) Coarse sands

c) Fine silt and clays

d) Highly plastic clays

24 / 30

24. 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

25 / 30

25. The change of moisture content of soils changes

a) Angle of repose

b) Cohesive strength

c) Amount of compaction required

d) Any of the above

26 / 30

26. Number of blows required to penetrate the sampler & cone for a depth of ...&... is known as penetration number

a) 30cm & 20cm

b) 20cm & 30cm

c) 40cm & 50cm

d) 50cm & 40cm

27 / 30

27. 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

28 / 30

28. 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

29 / 30

29. 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

30 / 30

30. The maximum size of a clay particle is

a) 0.1mm

b) 0.3mm

c) 0.002mm

d) 0.005mm

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Soil Mechanics Online Test – Paper 2

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