Soil Mechanics and Foundation Engineering problems
- 1. If Cs is the expansion index in Q. 11.165, the empirical formula given by Terzaghi, is
Options- A. e = e0 - Cd log10 ?'/?0'
- B. e = e0 + Cd log10 ?'/?0'
- C. e0 = e - Cd log10 ?'/?0'
- D. e° = e + Cd log10 ?'/?0' Discuss
Correct Answer: e = e0 + Cd log10 ?'/?0'
- 2. The bulk density of the soil sample stated in Q. No. 11.243, is
Options- A. 1.4 g/cc
- B. 1.6 g/cc
- C. 1.8 g/cc
- D. 2.0 g/cc Discuss
Correct Answer: 1.8 g/cc
- 3. Pick up the correct statement from the following:
Options- A. A soil having pH value more than 7 is an acidic soil
- B. A soil having pH value less than 7 is an acidic soil
- C. A soil having pH value more than 7 is an alkaline soil
- D. A soil containing chemicals for the manufacture of portland cement is preferred. Discuss
Correct Answer: A soil having pH value less than 7 is an acidic soil
- 4. The specific yield of soil depends upon
Options- A. compaction of stratum
- B. distribution of pores
- C. shape and size of particles
- D. all the above. Discuss
Correct Answer: all the above.
- 5. Pile foundations are generally preferred to for
Options- A. bridge foundations
- B. sky scrapper buildings
- C. residential buildings
- D. runways. Discuss
Correct Answer: sky scrapper buildings
- 6. The maximum possible value nf dry density is referred to as
Options- A. dry density
- B. zero air voids
- C. saturation dry density
- D. all the above. Discuss
Correct Answer: all the above.
- 7. If the bulk density of the soil is ? and water content ?, then dry density of the soil, is
Options- A.
- B.
- C.
- D.
Discuss
Correct Answer:
- 8. The seepage exit gradient in a soil is the ratio of
Options- A. total head to the length of seepage
- B. flow line to slope
- C. head upstream to that at downstream
- D. head loss to the length of the seepage
- E. none of these. Discuss
Correct Answer: head loss to the length of the seepage
- 9. For general engineering purposes, soils are classified by
Options- A. particle size classification system
- B. textural classification system
- C. High Way Research Board (HRB), classification system
- D. unified soil classification system. Discuss
Correct Answer: unified soil classification system.
- 10. A failure wedge develops if a retaining wall
Options- A. moves away from the backfill
- B. moves towards the backfill
- C. sinks downwards
- D. stresses equally by vertical and horizontal forces. Discuss
Correct Answer: moves away from the backfill
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