Soil Mechanics and Foundation
Dispersed type of soil structure is an arrangement comprising particles having

edge to edge orientation
All of these
face to face or parallel orientation
edge to face orientation

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

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

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Soil Mechanics and Foundation
The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing

cohesion and effective angle of shearing resistance
effective unit weight of soil and effective angle of shearing resistance
effective angle of shearing resistance
cohesion and effective unit weight of soil

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