Soil Mechanics and Foundation
In the plate loading test for determining the bearing capacity of soil, the size of square bearing plate should be

between 750 mm and 1 m
greater than 1 m
between 300 mm and 750 mm
less than 300 mm

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

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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

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

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Soil Mechanics and Foundation
Rise of water table above the ground surface causes

Decrease in pore water pressure but increase in total stress
Equal increase in pore water pressure and total stress
Equal decrease in pore water pressure and total stress
Increase in pore water pressure but decrease in total stress

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