Question

The bulking of sand is maximum when the water content is _________

(a) 0

(b) 5 to 6%

(c) 15 to 17%

(d) 20 to 21%

This question was addressed to me by my college director while I was bunking the class.

I need to ask this question from Slaking of Clay and Bulking of Sand topic in section Soil Water Effective and Neutral Stresses of Geotechnical Engineering I

Answer 1

Right choice is (b) 5 to 6%

The best explanation: The bulking of sand is maximum when the water content is 5 to 6%. Saturating the soil above 5 or 6% will result in destruction of the menisci and decrease in the volume.