Soil Mechanics and Foundation
Compressibility of sandy soils is

much greater than that of clayey soils
much less than that of clayey soils
almost equal to that of clayey soils
None of these

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Soil Mechanics and Foundation
Coefficient of earth pressure at rest is

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

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

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

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