Soil Mechanics and Foundation Engineering-Data Intensity 3 Multiple Questions and Answers.




6.According to Atterberg, the soil is said to be of medium plasticity if the plasticity index PI is____________?
A. 0 < PI < 7
B. 7
C. 17
D. None of above

7.If the plasticity index of a soil mass is zero, the soil is______________?
A. sand
B. silt
C. clay
D. clayey silt

8.When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as_____________?
A. negative
B. zero
C. non-plastic (NP)
D. 100%

9.The admixture of coarser particles like sand or silt to clay causes______________?
A. decrease in liquid limit and increase in plasticity index
B. decrease in liquid limit and no change in plasticity index
C. decrease in both liquid limit and plasticity index
D. increase in both liquid limit and plasticity index

10.The water content of soil, which represents the boundary between plastic state and liquid state, is known as_________________?
A. liquid limit
B. plastic limit
C. shrinkage limit
D. plasticity index

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