Question

The inside clearance of the sampler should _______

(a) lie between 1 to 3%

(b) be less than 1%

(c) lie between 2 to 6%

(d) lie between 1 to 6%

This question was addressed to me in a national level competition.

My doubt stems from Soil Samples and Samplers topic in chapter Stabilisation of Soils, Site Investigation and Sub – Soil Exploration of Geotechnical Engineering II

Answer 1

Correct choice is (a) lie between 1 to 3%

Easy explanation: The inside clearance of the sampler should lie between 1 to 3%. The outside clearance of the sampler should not be much greater than the inside clearance of the sampler.