Soil Mechanics and Foundation
Coefficient of earth pressure at rest is

less than both the active and passive earth pressures
greater than both the active earth pressure and passive earth pressure
less than active earth pressure but greater than passive earth pressure
greater than active earth pressure but less than passive earth pressure

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

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

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