Question

The equipment required for construction of a under-reamed pile is________

(a) Auger boring guide

(b) Spiral auger

(c) Concreting funnel

(d) All of the mentioned

The question was posed to me in a job interview.

The above asked question is from Construction of Under-Reamed Pile Foundation topic in division Pile Foundations of Geotechnical Engineering II

Answer 1

Right answer is (d) All of the mentioned

The best I can explain: The equipment required for the construction of pile are i) Auger boring guide ii) spiral auger with extension rods iii) under-reamer with soil bucket and iv) concreting funnel.