Question

A Factor of safety that should be adopted for finding an allowable load for a pile is _________

(a) 2.5 and 3

(b) 4

(c) None of the mentioned

(d) All of the mentioned

The question was asked in an interview for internship.

Query is from Pile Load Tests topic in portion Pile Foundations of Geotechnical Engineering II

Answer 1

The correct option is (a) 2.5 and 3

The best I can explain: The IS code recommends that for working out allowable load, a minimum factor of safety 2.5 or 3 should be used.