Question

There are __________ types of bored piles.

(a) 4

(b) 2

(c) 5

(d) 3

This question was posed to me during an online interview.

My enquiry is from Bored Piles topic in section Pile Foundations of Geotechnical Engineering II

Answer 1

Right answer is (d) 3

Explanation: Bored piles are of three types: i) Pressure piles, ii) under-reamed piles, and iii) Bored compaction piles.