Soil Mechanics and Foundation Engineering problems
- 1. Tergazhi's theory of one dimensional consolidation assumes
Options- A. load is applied in one direction
- B. coefficient of permeability is constant
- C. excess pore water drains out only in the vertical direction
- D. time lag in consolidation is due entirely to permeability
- E. all the above. Discuss
Correct Answer: all the above.
- 2. Pick up the correct statement from the following:
Options- A. The dry density reduces by addition of water after attaining optimum moisture content
- B. The line joining the peak of three moisture content graphs obtained by using three compactive energies, is called line of optimus
- C. Well graded coarse grained soils can be compacted to a very high density as compared to fine grained soils
- D. All the above. . Discuss
Correct Answer: All the above. .
- 3. Which one of the following statements is true for Mohr-Coulomb envelope?
Options- A. Coulomb suggests that the relationship between shear strength and normal stress, is adequately represented by the straight line
- B. The generalised Mohr theory suggests that, though the shear stress depends on the normal stress, the relation is not linear
- C. Coulomb and Mohr suggest that a definite relationship exists among the principal stress and the angle of internal friction
- D. For an ideal pure friction material, the straight line passes through the origin.
- E. All the above. Discuss
Correct Answer: All the above.
- 4. The ratio of emax and emin of silty sand, is
Options- A. 2.0
- B. 5
- C. 3.0
- D. 3.5
- E. 4.0 Discuss
Correct Answer: 3.0
- 5. The angle of internal friction is maximum for
Options- A. angular-grained loose sand
- B. angular-grained dense sand
- C. round-grained dense sand
- D. round-grained loose sand
- E. clays. Discuss
Correct Answer: angular-grained dense sand
- 6. Soils containing organic matters
Options- A. are of spongy nature
- B. swell with decrease of moisture
- C. shrink with increase of moisture content
- D. none of these. Discuss
Correct Answer: are of spongy nature
- 7. The plasticity of fine soils may be assessed by means of
Options- A. dry strength test
- B. toughness test
- C. dilatancy test
- D. all of these. Discuss
Correct Answer: all of these.
- 8. If ? is the surcharge angle of a backfill with an angle of internal friction ?, the coefficient of active earth pressure given by Rankine's theory, is :
Options- A.
- B.
- C.
- D. none of these. Discuss
Correct Answer:
- 9. Laplacian fundamental equation for a non-compressible flow in three dimensions, is
Options- A.
- B.
- C.
- D. none of these. Discuss
Correct Answer:
- 10. The slip at critical angle, is generally known
Options- A. ? 1-line
- B. rupture plane
- C. slip plane
- D. all the above. Discuss
Correct Answer: all the above.
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