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Civil Engineering Objective Questions { Soil Mechanics And Foundation Engineering }



50. The minimum water content at which the soil just begins to crumble when rolled into threads 3 mm in diameter, is known
A. liquid limit
B. plastic limit
C. shrinkage limit
D. permeability limit.

51.  The minimum water content at which the soil retains its liquid state and also possesses a small shearing strength anginst flowing, is known
A. liquid limit
B. plastic limit
C. shrinkage limit
D. permeability limit.

52.  The maximum water content at which a reduction in water content does not cause a decrease in volume of a soil mass, is known
A. liquid limit
B. plastic limit
C. shrinkage limit
D. permeability limit.

53. The plasticity index is the numerical difference between
A. liquid limit and plastic limit
B. plastic limit and shrinkage limit
C. liquid limit and shrinkage limit
D. none of these.

54. The preperty of a soil which allows it to be deformed rapidly without rupture, elastic rebound and also a volume change, is known
A. porosity
B. plasticity
C. permeability
D. ductility.

55. The consistency index of a soil is defined as the ratio of
A. liquid limit plus the natural water content to the plasticity index of the soil
B. liquid limit minus the natural water content to the plasticity index of the soil
C. natural water content of a soil minus plastic limit to the plasticity index of the soil
D. natural water content of a soil plus its plastic limit to the plasticity index of the soil.

56. The liquidity index is defined as a ratib expressed as percentage of
A. plastic limit minus the natural water content, to its plasticity index
B. natural water content minus its plastic limit to its plasticity index
C. natural water content plus its plastic limit to its plasticity index
D. liquid limit minus the natural water content to the plasticity index.

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