The plasticity of fine soils may be assessed by means of dry strength test tough

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Question
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.

Correct Answer

all of these.

Soil Mechanics and Foundation Engineering problems

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2. 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.

4. 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.

5. 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. .

9. A structure is erected on an impervious clay whose thickness is 12 m. Drainage is possible both at upper and lower surfaces. Coefficient of consolidation is 0.015 cm² per minute. For attaining 50% consolidation with a time factor 0.20, the number of days required
Options
A. 3233
B. 3123
C. 33331
D. 3313

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