Soil Mechanics and Foundation
In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear

decreases
first increases and then decreases
increases
remains unchanged

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Soil Mechanics and Foundation
With the increase in the amount of compaction energy

both optimum water content and maximum dry density decrease[ES 93]
both optimum water content and maximum dry density increase
optimum water content increases but maximum dry density decreases
optimum water content decreases but maximum dry density increases

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Soil Mechanics and Foundation
Coefficient of earth pressure at rest is

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

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Soil Mechanics and Foundation
For a loose sand sample and a dense sand sample consolidated to the same effective stress

ultimate strength is different but peak strength is same
ultimate strength is same but peak
ultimate strength is same and also peak strength is same
ultimate strength is same but peak strength of dense sand is greater than that of loose sand

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