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The maximum hygroscopic capacity of clay is __________

(a) 1 %

(b) 3 %

(c) 7 %

(d) 17 %

This question was addressed to me in an online quiz.

The doubt is from Capillary Water in division Soil Water Effective and Neutral Stresses of Geotechnical Engineering I

1 Answer

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Best answer
Correct choice is (d) 17 %

The best explanation: The ratio of water adsorbed by dry soil in a saturated atmosphere at a given temperature to the weight of oven-dried soil, has the following average values Sands 1% silts 7%, clays 17 %.

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