Soil Mechanics and Foundation Engineering problems
- 1. The angle between the directions of the failure and the major principal plane, is equal to
Options- A. 90° + effective angle of shearing resistance
- B. 90° + half of the angle of shearing resistance
- C. 45° - half of the angle of shearing resistance
- D. 45° + half of the angle of shearing resistance. Discuss
Correct Answer: 45° + half of the angle of shearing resistance.
- 2. The earth pressure of a soil at rest, is proportional to (where ? is the angle of internal friction of the soil)
Options- A. tan (45° - ?)
- B. tan (45° + ?)
- C. tan2 (45° - ?)
- D. tan2 (45° + ?)
- E. none of these Discuss
Correct Answer: none of these
- 3. Pick up the correct statement from the following:
Options- A. Illite bond is weaker than Kaolinite bond
- B. Illite bond is stronger than montmorillonite bond
- C. Illites do not swell when wet
- D. Illites are composed of two silica tetrahedralsheets with a central octahedral sheet
- E. All the above. Discuss
Correct Answer: All the above.
- 4. Pick up the correct statement from the following:
Options- A. If the ratio of depth to width is less than 2, it is shallow foundation
- B. If the ratio of depth to width is more than 2, it is deep foundation
- C. If the ratio of the length to width is between 1 and 2, it is spread foundation
- D. If the length is large as compared to width, it is a strip foundation
- E. All the above. Discuss
Correct Answer: All the above.
- 5. The soil moisture driven off by heat, is called
Options- A. free water
- B. hydroscopic water
- C. gravity water
- D. none of these. Discuss
Correct Answer: hydroscopic water
- 6. A decrease in water content results in a reduction of the volume of a soil in
Options- A. liquid state
- B. plastic state
- C. semi solid state
- D. all of these. Discuss
Correct Answer: all of these.
- 7. Pick up the incorrect statement from the following:
Options- A. Compaction has no effect on the structure of a soil
- B. Permeability decreases with increase in the dry density of a compacted soil
- C. A wet side compacted soil is more compressible than a dry side compacted soil
- D. Dry side compaction soils swell more when given access to moisture
- E. None of the these. Discuss
Correct Answer: Compaction has no effect on the structure of a soil
- 8. Pick up the correct statement from the following:
Options- A. The void space between the soil grains, is filled partly with air and partly with water
- B. In perfectly saturated soil, the voids are completely filled with water
- C. In dry soil, the voids are completely filled with air
- D. all the above. Discuss
Correct Answer: all the above.
- 9. The maximum load carried by a pile, when it continues to sink without further increase of load, is known as
Options- A. ultimate load carrying capacity
- B. ultimate bearing capacity
- C. ultimate bearing resistant
- D. all the above. Discuss
Correct Answer: all the above.
- 10. The maximum shear stress occurs on the filament which makes an angle with the horizontal plane equal to
Options- A. 30°
- B. 45°
- C. 60°
- D. 90° Discuss
Correct Answer: 45°
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