Civil Engineering MCQs

Page No. 248

If the natural water content of soil mass lies between its liquid limit and plastic limit, the soil mass is said to be in______________?


aliquid state


bplastic state


cemi-solid state


dsolid state


View Answer plastic state

Toughness index is defined as the ratio of____________________?


aplasticity index to consistency index


bplasticity index to flow index


cliquidity index to flow index


d consistency index to liquidity index



At liquid limit, all soils possess________________?


asame shear strength of small magnitude


b same shear strength of large magnitude


cdifferent shear strengths of small magnitude


ddifferent shear strengths of large magnitude



The water content of soil, which represents the boundary between plastic state and liquid state, is known as_________________?


aliquid limit


bplastic limit


cshrinkage limit


dplasticity index


View Answer liquid limit

The admixture of coarser particles like sand or silt to clay causes______________?


adecrease in liquid limit and increase in plasticity index


b decrease in liquid limit and no change in plasticity index


cdecrease in both liquid limit and plasticity index


dincrease in both liquid limit and plasticity index



When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as_____________?


anegative


bzero


cnon-plastic (NP)


d 1


View Answer zero

If the plasticity index of a soil mass is zero, the soil is______________?


asand


bsilt


cclay


d clayey silt


View Answer sand

According to Atterberg, the soil is said to be of medium plasticity if the plasticity index PI is____________?


a0 < PI < 7


b. 7


c17


d0


View Answer 7

The hydrometer method of sedimentation analysis differs from the pipette analysis mainly in_____________?


athe principle of test


bthe method of taking observations


cthe method of preparation of soil suspension


dall of the above



Uniformity coefficient of a soil is__________________?


aalways less than 1


b always equal to 1


cequal to or less than 1


dequal to or gi eater than 1



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