If G is specific gravity of sand particles, e is porosity, the critically hydrau

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Question
If G is specific gravity of sand particles, e is porosity, the critically hydraulic gradient
Options
A. i_c =
B. i_c =
C. i_c =
D. i_c =

Correct Answer

i_c =

Soil Mechanics and Foundation Engineering problems

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1. Pick up the correct statement from the following:
Options
A. When stress decreases, void, ratio decreases
B. When stress decreases, coefficient of permeability decreases
C. When stress decreases, coefficient of volume change decreases
D. When stress decreases void ratio, co-effi-cients of per-meability and volume change decrease.

2. The bearing capacity of a soil depends upon
Options
A. size of the particles
B. shape of the particles
C. cohesive properties of particles
D. internal frictional resistance of particles
E. all the above.

3. A suspended particle falls through a height H cm in water in t minutes. If the viscosity of water is ? and specific gravity of the particle is G, the diameter of the particle is (where M is a constant factor)
Options
A. 10³M
B. 10⁴M
C. 10⁵M
D. 10²M

4. Pick up the correct statement from the following:
Options
A. The permeability of the coarse-grained soils may be reduced by grouting.
B. The process of injecting fluids (i.e. grouts) into the pores space of the soil, is called grouting.
C. The grouting increases the soil strength.
D. All the above.

5. A plane inclined at an angle ? to the horizontal at which the soil is expected to stay in the absence of any lateral support, is known as
Options
A. natural slope line
B. repose line
C. the ? line
D. all the above.

10. If the natural moisture content, the liquid limit and plastic limit of a soil sample are stated as 30.5%, 42.5% and 22.5% respectively, the ratio of liquidity index and plastic index, is
Options
A.
B.
C. 2
D.

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