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

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

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Soil Mechanics and Foundation
Coefficient of earth pressure at rest is

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

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Soil Mechanics and Foundation
The average coefficient of permeability of natural deposits

Parallel to stratification is always greater than that perpendicular to stratification
Parallel to stratification is always less than that perpendicular to stratification
Is always same in both directions
Parallel to stratification may or may not be greater than that perpendicular to stratification

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