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For a given difference in pressure, the value of av _______ as pressure increases.

(a) increases

(b) decreases

(c) is same

(d) becomes unity

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Question is from Consolidation Process in division One Dimensional Consolidation of Geotechnical Engineering I

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Best answer
Correct option is (b) decreases

The explanation: The coefficient of compressibility av is defined as the decrease in voids ratio per unit increase of pressure. Therefore, for a given difference in pressure, the value of av decreases as pressure increases.

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