Soil Mechanics and Foundation
The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively

zero and zero
0.5 kg/cm² and zero
0.5 kg/cm² and 0.5 kg/cm²
1.0 kg/cm² and 0.5 kg/cm²

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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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