Question

What are the ways of preventing of inclusion of air bubbles in shrinkage dish?

(a) Mixing the soil with sufficient distilled water and Making the soil pasty enough

(b) Coating the surface with a thin layer of oil

(c) All of the mentioned

(d) None of the mentioned

This question was addressed to me during an online interview.

I'd like to ask this question from Shrinkage Limit topic in chapter Index Properties Determination of Geotechnical Engineering I

Answer 1

Right option is (a) Mixing the soil with sufficient distilled water and Making the soil pasty enough

The best explanation: Mixing the soil with sufficient distilled water and making it pasty enough prevents forming air bubbles in shrinking dish.