Geotechnical Engineering MCQs Set-3

1. Compressibility of sandy soils is

almost equal to that of clayey soils

much less than that of clayey soils

much greater than that of clayey soils

none of these

2. Dispersed type of soil structure is an arrangement comprising particles having

face to face or parallel orientation

edge to face orientation

edge to edge orientation

all of these

3. Coefficient of consolidation for clays normally

first increases and then decreases with increase in liquid limit

remains constant at all liquid limits

increases with increase in liquid limit

decreases with increase in liquid limit

4. If the water table rises upto ground surface, then the

effective stress is reduced due to increase in pore water pressure only but total stress does not change

effective stress is reduced due to decrease in total stress only but pore water pressure does not change

total stress is reduced due to increase in pore water pressure only but effective stress does not change

total stress is increased due to decrease in pore water pressure but effective stress does not change

5. Negative skin friction on a pile

acts downward and increases the load carrying capacity of the pile

acts upward and reduces the load carrying capacity of the pile

acts upward and increases the load carrying capacity of the pile

acts downward and reduces the load carrying capacity of the pile

6. Water content of soil can

be greater than 100%

be less than 0%

take values only from 0% to 100%

never be greater than 100%

7. Rise of water table above the ground surface causes

decrease in pore water pressure but increase in total stress

equal decrease in pore water pressure and total stress

equal increase in pore water pressure and total stress

increase in pore water pressure but decrease in total stress

8. The admixture of coarser particles like sand or silt to clay causes

decrease in liquid limit and increase in plasticity index

decrease in liquid limit and no change in plasticity index

decrease in both liquid limit and plasticity index

increase in both liquid limit and plasticity index

9. Allowable bearing pressure for a foundation depends on

ultimate bearing capacity of soil only

both allowable settlement and ultimate bearing capacity

none of these

allowable settlement only

10. Effective stress on soil

increases both voids ratio and permeability

increases voids ratio and decreases permeability

decreases voids ratio and increases permeability

decreases both voids ratio and permeability

Geotechnical Engineering MCQs Set-3

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Geotechnical Engineering MCQs Set-3

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