Question

The grain size distribution of soil basically determines inter-particle forces and its packing.

(a) True

(b) False

This question was posed to me during an internship interview.

This question is from Grain Size and Shape in portion Molding and Core Sands of Casting-Forming-Welding I

Answer 1

Correct option is (a) True

The explanation is: Soil is mainly made of grains which size distribution estimates the particle-level forces and the inter-particle packing. Hence, the grain size distribution plays a vital role in the soil systems. The shape of grain is classified at the three different parameters which are global form, surface features and surface roughness.