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Soil Mechanics and Foundation - Interview Questions and Answers

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36. At liquid limit, all soils possess
A. same shear strength of small magni-tude
B. same shear strength of large magni-tude
C. different shear strengths of small magnitude
D. different shear strengths of large magnitude
Explanation:
37. The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively
A. zero and zero
B. 0.5 kg/cm2 and zero
C. 0.5 kg/cm2 and 0.5 kg/cm2
D. 1.0 kg/cm2 and 0.5 kg/cm2
Explanation:
38. If the sand in-situ is in its densest state, then the relative density of sand is
A. zero
B. 1
C. between 0 and 1
D. greater than 1
Explanation:
39. The hydraulic head that would produce a quick condition in a sand stratum of thickness 1.5 m, specific gravity 2.67 and voids ratio 0.67 is equal to
A. 1.0m
B. 1.5 m
C. 2.0 m
D. 3m
Explanation:
40. Select the correct statement.
A. A uniform soil has more strength and stability than a non-uniform soil.
B. A uniform soil has less strength and stability than a non-uniform soil.
C. Uniformity coefficient does not affect strength and stability.
D. Uniformity coefficient of a poorly graded soil is more than that of a well graded soil.
Explanation: