Soil Mechanics and Foundation Engineering problems
- 1. Minimum size of the particles of silt soil, is
Options- A. 0.002 mm
- B. 0.04 mm
- C. 0.06 mm.
- D. 0.08 mm
- E. 1 mm Discuss
Correct Answer: 0.002 mm
- 2. Pick up the correct statement from the following :
Options- A. In soils, the flow index indicates variation in shear strength with water content
- B. Liquid limit minus plastic limit, is known as plasticity index of the soil
- C. Plastic limit minus shrinkage limit, is known as shrinkage index of the soil
- D. The ratio of the plasticity index to the flow limit, is known as toughness index of the soil
- E. All the above. Discuss
Correct Answer: All the above.
- 3. Failure of the stability of slopes, generally occurs along
Options- A. slip plane
- B. a horizontal surface
- C. a curved surface
- D. all the surfaces. Discuss
Correct Answer: a curved surface
- 4. Which one of the following statements is true?
Options- A. Clays are more porous than sands
- B. Pressure of organic matter in a soil decreases the bearing capacity of the soil
- C. Aluminous cement is used for foundations in soils with chemical deposits
- D. All the above. Discuss
Correct Answer: All the above.
- 5. Degree of saturation of a natural soil deposit having water content 15%, specific gravity 2.50 and void ratio 0.5, is
Options- A. 50%
- B. 60%
- C. 75%
- D. 80% Discuss
Correct Answer: 75%
- 6. Stoke's law sates that the velocity at which a grain settles out of suspension, the other factors remaining constant, is dependent upon
Options- A. shape of grain
- B. weight of grain
- C. size of grain
- D. shape and size of grain
- E. shape, size and weight of grain. Discuss
Correct Answer: shape, size and weight of grain.
- 7. The relationship between void ratio (e) and porosity ratio (n) is :
Options- A. n =
- B. e =
- C. n =
- D. e = n/(1 - n) Discuss
Correct Answer: e = n/(1 - n)
- 8. A partially saturated sample of soil has a unit weight of 2.0 g/cm3 and specific gravity of soil particles is 2.6. If the moisture content in the soil is 20%, the degree of saturation is
Options- A. 20%
- B. 77%
- C. 92%
- D. none of these. Discuss
Correct Answer: 92%
- 9. Pick up the correct statement from the following:
Options- A. The rise of the ground surface due to frost action is called frost heave.
- B. The freezing of water is accompained by a volume increase of 9%.
- C. Below freezing point, higher soil suction develops.
- D. The magnitude of frost heave decreases as the degree of saturation of soil decreases
- E. All the above. Discuss
Correct Answer: All the above.
- 10. The maximum value of effective stress in the past divided by the present value, is defined as over consolidation ratio (OCR). The O.C.R. of an over consolidated clay is
Options- A. less than 1
- B. 1
- C. more than 1
- D. None of these. Discuss
Correct Answer: more than 1
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