Question

The expression for C n as given by Lio and Whitman is _____________

(a) C n = √(σ’)

(b) C n = √(100/σ’)

(c) C n = 0.77log10(2000/σ’)

(d) None of the mentioned

This question was posed to me in an interview for internship.

The origin of the question is Bearing Capacity topic in section Bearing Capacity of Geotechnical Engineering II

Answer 1

The correct answer is (b) C n = √(100/σ’)

Easy explanation: In 1986, Lio and Whitman gave the following expression for

Normalizing factor C n:

C n = √ (100/σ’).