Soil Mechanics and Foundation
Direct measurement of permeability of the specimen at any stage of loading can be made

both (A) and (B)
only in fixed ring type consolido-meter
None of these
only in floating ring type consolido-meter

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

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