Soil Mechanics and Foundation
Allowable bearing pressure for a foundation depends upon

ultimate bearing capacity of soil only
none of above
allowable settlement only
both allowable settlement and ultimate bearing capacity

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

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
None of these
ratio of volume of voids to volume of solids

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

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

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