Question

The soil is assumed to be coherent in the study of the mechanism of sediment transport.

(a) True

(b) False

This question was posed to me in my homework.

I would like to ask this question from Sediment Transport topic in section Sediment Transport and Irrigation Channels Design of Irrigation Engineering

Answer 1

Right answer is (b) False

For explanation I would say: Coherent means that there is a cohesive force between particles such as in the case of clays. The soil is assumed to be incoherent so that each soil grain is studied individually. Most of our river beds are made up of gravels and sands in which there is no cohesion.