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Increase in water content causes _______

(a) shrinkage

(b) swelling

(c) frost heave

(d) frost boil

This question was addressed to me during an online exam.

This is a very interesting question from Slaking of Clay and Bulking of Sand topic in division Soil Water Effective and Neutral Stresses of Geotechnical Engineering I

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Correct option is (b) swelling

Explanation: Increase in water content of soil results in increase in the volume of the soil thus causing the swelling of the soil.

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