Clay layer A with single drainage and coefficient of consolidation Cv takes 6 months to achieve 50% consolidation. The time taken by clay layer B of the same thickness with double drainage and coefficient of consolidation Cv/2 to achieve the same degree of consolidation is

Soil Mechanics and Foundation
Clay layer A with single drainage and coefficient of consolidation Cv takes 6 months to achieve 50% consolidation. The time taken by clay layer B of the same thickness with double drainage and coefficient of consolidation Cv/2 to achieve the same degree of consolidation is

3 months

12 months

6 months

24 months

3 months

12 months

6 months

24 months

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Soil Mechanics and Foundation
Coarse grained soils are best compacted by a

sheep’s foot roller

drum roller

vibratory roller

rubber tyred roller

sheep’s foot roller

drum roller

vibratory roller

rubber tyred roller

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Soil Mechanics and Foundation
If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is

less than specific gravity of soil

independent of specific gravity of soil

equal to specific gravity of soil

greater than specific gravity of soil

less than specific gravity of soil

independent of specific gravity of soil

equal to specific gravity of soil

greater than specific gravity of soil

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Soil Mechanics and Foundation
For a loose sand sample and a dense sand sample consolidated to the same effective stress

ultimate strength is different but peak strength is same

ultimate strength is same but peak

ultimate strength is same and also peak strength is same

ultimate strength is same but peak strength of dense sand is greater than that of loose sand

ultimate strength is different but peak strength is same

ultimate strength is same but peak

ultimate strength is same and also peak strength is same

ultimate strength is same but peak strength of dense sand is greater than that of loose sand

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Soil Mechanics and Foundation
Physical properties of a permeant which influence permeability are

viscosity only

None of these

unit weight only

both viscosity and unit weight

viscosity only

None of these

unit weight only

both viscosity and unit weight

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Soil Mechanics and Foundation
Stoke’s law is valid only if the size of particle is

greater than 0.2 mm

All of these

between 0.2 mm and 0.0002 mm

less than 0.0002 mm

greater than 0.2 mm

All of these

between 0.2 mm and 0.0002 mm

less than 0.0002 mm

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Soil Mechanics and Foundation

Soil Mechanics and Foundation Coarse grained soils are best compacted by a

Soil Mechanics and Foundation If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is

Soil Mechanics and Foundation For a loose sand sample and a dense sand sample consolidated to the same effective stress

Soil Mechanics and Foundation Physical properties of a permeant which influence permeability are

Soil Mechanics and Foundation Stoke’s law is valid only if the size of particle is

Soil Mechanics and Foundation
Coarse grained soils are best compacted by a

Soil Mechanics and Foundation
If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is

Soil Mechanics and Foundation
For a loose sand sample and a dense sand sample consolidated to the same effective stress

Soil Mechanics and Foundation
Physical properties of a permeant which influence permeability are

Soil Mechanics and Foundation
Stoke’s law is valid only if the size of particle is