Question

Thick wall samplers have area ratio______

(a) greater than 20 -35%

(b) greater than 10- 25%

(c) lesser than 10 -25%

(d) lesser than 15 -35%

The question was posed to me in quiz.

The doubt is from Soil Samples and Samplers in portion Stabilisation of Soils, Site Investigation and Sub – Soil Exploration of Geotechnical Engineering II

Answer 1

The correct answer is (b) greater than 10- 25%

Explanation: Thin-wall samplers are the samplers in which the wall thickness of the sampling tube is less than 2.5% of the diam¬eter. Samplers for which the area ratio is greater than 10- 25% are known as thick-wall samplers.