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
The major principal stress in an element of cohesion-less soil within the backfill of a retaining wall is

Vertical if the soil is in an active state of plastic equilibrium
None of these
Vertical if the soil is in a passive state of plastic equilibrium
Inclined at 45° to the vertical plane

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