Soil Mechanics and Foundation
Degree of consolidation is

directly proportional to time and inversely proportional to square of drainage path
directly proportional to time and inversely proportional to drainage path
directly proportional to drainage path and inversely proportional to time
directly proportional to square of drainage path and inversely proportional to time

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Soil Mechanics and Foundation
A tri-axial shear test is preferred to direct shear test, because

None of these
It can be performed under all three drainage conditions with complete control
Stress distribution on the failure plane, is non uniform
Precise measurement of pore pressure and change in volume during test, is not possible

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Soil Mechanics and Foundation
Sensitivity of a soil can be defined as

ratio of volume of voids to volume of solids
None of these
ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state
percentage of volume change of soil under saturated condition

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Soil Mechanics and Foundation
Quick sand is a

type of sand
flow condition occurring in cohesionless soils
flow condition occurring in both cohesive and cohesionless soils
flow condition occurring in cohesive soils

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