Geotechnical Engineering MCQs Set-3

11. Compressibility of sandy soils is

much greater than that of clayey soils

much less than that of clayey soils

almost equal to that of clayey soils

none of these

12. In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear

increases

decreases

remains unchanged

first increases and then decreases

13. Which of the following methods is more suitable for the determination of permeability of clayey soil?

none of these

constant head method

falling head method

horizontal permeability test

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

edge to edge orientation

edge to face orientation

all of these

face to face or parallel orientation

15. Negative skin friction on a pile

acts upward and increases the load carrying capacity of the pile

acts upward and reduces the load carrying capacity of the pile

acts downward and reduces the load carrying capacity of the pile

acts downward and increases the load carrying capacity of the pile

16. Coefficient of earth pressure at rest is

less than active pressure but greater than passive earth pressure

greater than both the active pressure and passive earth pressure

greater than active earth pressure but less than passive earth pressure

less than both the active and passive earth pressures

17. A combined footing is generally used when

number of columns is two and they are spaced close to each other

number of columns is more than two and they are spaced far apart

there is only one column

number of columns is two and they are spaced far apart

18. Quick sand is a

flow condition occurring in cohesive soils

type of sand

flow condition occurring in cohesionless soils

flow condition occurring in both cohesive and cohesionless soils

19. The slope of isochrone at any point at a given time indicates the rate of change of

effective stress with time

effective stress with depth

pore water pressure with depth

pore water pressure with time

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

decrease in liquid limit and increase in plasticity index

increase in both liquid limit and plasticity index

decrease in liquid limit and no change in plasticity index

decrease in both liquid limit and plasticity index

Geotechnical Engineering MCQs Set-3

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