Soil Mechanics and Foundation Engineering problems
- 1. Cohesive soils are generally
Options- A. plastic and also compressible
- B. elastic and also compressible
- C. plastic but incompressible
- D. none of these. Discuss
Correct Answer: plastic and also compressible
- 2. For testing a saturated clay for shear strength, the test recommended, is
Options- A. direct shear test
- B. triaxial compression test
- C. unconfined compression test
- D. all the above. Discuss
Correct Answer: unconfined compression test
- 3. The weight of a container is W1 and that of container with soil simple, is W2. If the weight of the container and oven dried soil sample is W3, the moisture content of the soil, is
Options- A.
- B.
- C.
- D.
Discuss
Correct Answer:
- 4. A clay subjected to pressure in excess to its present over-burden, is said to be
Options- A. pre-compressed
- B. pre-consolidated
- C. over-consolidated
- D. all the above. Discuss
Correct Answer: all the above.
- 5. The minimum depth of building foundations on
Options- A. sandy soils 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 the above. Discuss
Correct Answer: all the above.
- 6. The Terzaghi's general bearing capacity equation for a continuous footing is given by (where Nc, 2V& and Ny are bearing capacity factors.)
Options- A. qf = cNc + ?DNq + 0.5?BN?
- B. qf = cNc - ?DNq + 0.5?BN?
- C. qf = cNc + ?DNq - 0.5?BN?
- D. qf = cNc - ?DNq - 0.5?BN? Discuss
Correct Answer: qf = cNc + ?DNq + 0.5?BN?
- 7. Pick up the incorrect definition from the following:
Options- A. Ratio of the compressive strength of unconfined undisturbed soil to that of remoulded soil, is known as the sensitivity of the soil sample
- B. The rotation of soil particles into stable state while remoulding, is known as the thiostropy of soil
- C. The water content at which a soil changes from the liquid state to solid state, is known liquid limit of the soil
- D. The water content at which a soil flows, is known plastic limit of the soil
- E. None of these. Discuss
Correct Answer: The water content at which a soil flows, is known plastic limit of the soil
- 8. The consolidation time for soils
Options- A. increases with increasing compressibility
- B. decreases with increasing permeability
- C. increases rapidly with increasing size of soil mass
- D. is independent of the magnitude of the stress change.
- E. All the above. Discuss
Correct Answer: All the above.
- 9. Compression of soil occurs rapidly if voids are filled with
Options- A. air
- B. water
- C. partly with air and partly with water
- D. none of these. Discuss
Correct Answer: air
- 10. Chemical weathering of soil is caused due to
Options- A. oxidation
- B. carbonation
- C. hydration
- D. leaching
- E. all the above. Discuss
Correct Answer: all the above.
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