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. For normally consolidated clay deposits, the stability analysis of slope by the following method is appropriate:

a) Friction circle method

b) Swedish circular arc method

c) Stices method

d) None 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. In cohesive soils, the depth of the vertical cut up to which no lateral support is required is given by:

a) 2c/γ

b) 4c/γ

c) 2γ/c

d) 4γ/c

4 / 30

4. 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

5 / 30

5. For the determination of shear strength in the laboratory, the tests done are

a) Triaxial shear test

b) Direct shear test

c) All of the above

d) Unconfined shear test

6 / 30

6. Moisture content of saturated soil equals:

a) 0%

b) 100%

c) 50%

d) 90%

7 / 30

7. 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

8 / 30

8. California Bearing Ratio test is used:

a) To find the bearing capacity of the soil

b) To find the thickness of a flexible pavement

c) To find the ratio of ultimate bearing capacity to net bearing capacity

d) None of the above

9 / 30

9. Particle size range is measured by

a) Effective size

b) Uniformity coefficient

c) Coefficient of curvature

d) None of the above

10 / 30

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

a) 0.25

b) 0.50

c) 0.75

d) 1.00

11 / 30

11. One of the graphical methods for earth pressure determination is:

a) Newmark's influence chart method

b) Mohr diagram method

c) Culmann's method

d) Taylor's method

12 / 30

12. The top flow line in the case of seepage flow through an earthen dam has the shape of

a) Parabola

b) Ellipse

c) Hyperbola

d) None of the above

13 / 30

13. Contribution due to skin friction is maximum in:

a) Sands

b) Soft clays

c) Piles resting on rock

d) None of the above

14 / 30

14. 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

15 / 30

15. The shear strength of a soil is proportional

a) Directly to the angle of internal friction

b) Directly to the tangent of the angle of internal friction

c) Inversely to the angle of internal friction

d) None of the above

16 / 30

16. Pile foundations are enormously used in:

a) Bridge foundations

b) Machine foundations

c) Tall buildings

d) Towers

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. The process of compaction may involve

a) Rolling

b) Tamping

c) Vibration

d) Any of the above

19 / 30

19. Specific gravity of soil is

a) Same for clays and sands

b) Determined by hydrometer

c) Less than 2.0 for most soils

d) More than 2.5 for most soils

20 / 30

20. The shear strength of a soil

a) Is directly proportional to the depth of the soil

b) Is directly proportional to the angle of repose of the soil

c) Increases with normal stress

d) Decreases with an increase in the normal stress

21 / 30

21. The water content at which the soil changes from a liquid state to a plastic state is known as

a) Plastic limit

b) Liquid limit

c) Shrinkage limit

d) None of the above

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 minimum depth of the building foundation in:

a) Sandy soil is 80 cm to 100 cm

b) Clay soils is 90 cm to 160 cm

c) Rocky soils is 5 cm to 50 cm

d) All of the above

24 / 30

24. 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

25 / 30

25. Mechanical stabilization is done by

a) Cement

b) Lime

c) Bitumen

d) Proper grading

26 / 30

26. The strength of a soil is generally identified by

a) Direct tensile stress

b) Net stress

c) Ultimate shear stress

d) Direct ultimate compressive stress

27 / 30

27. The wall constructed to resist horizontal pressure is:

a) Main wall

b) Partition wall

c) Retaining wall

d) All of the above

28 / 30

28. 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

29 / 30

29. A phreatic line is defined as the line within a dam section below which there are

a) Positive equipotential lines

b) Positive hydrostatic pressure

c) Negative hydrostatic pressure

d) Negative equipotential lines

30 / 30

30. Toe failure is most likely in the case of:

a) Steep slopes

b) Gentle slopes

c) All inclinations

d) Very steep slopes

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Soil Mechanics Online Test – Paper 2

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