Soil Mechanics and Foundation
Which of the following methods is most accurate for the determination of the water content of soil ?

sand bath method
calcium carbide method
pycnometer method
oven drying method

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

reduce the active earth pressure in-tensity but to increase the passive earth pressure intensity
reduce both the active earth pressure intensity and passive earth pressure intensity
increase both the active earth pressure intensity and 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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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 and also peak strength is same
ultimate strength is same but peak strength of dense sand is greater than that of loose sand
ultimate strength is same but peak

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