Soil Mechanics and Foundation
For better strength and stability, the fine grained soils and coarse grained soils are compacted respectively as

dry of OMC and dry of OMC where OMC is optimum moisture content
wet of OMC and dry of OMC
dry of OMC and wet of OMC
wet of OMC and wet of OMC

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Soil Mechanics and Foundation
The effect of cohesion on a soil is to

reduce both the active earth pressure intensity and passive earth pressure intensity
increase both the active earth pressure intensity and passive earth pressure intensity
reduce the active earth pressure in-tensity but to increase the passive earth pressure intensity
increase the active earth pressure in-tensity but to reduce the passive earth pressure intensity [GATE 99]

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