Question

In _______________ type of gantries, derricks are built on specially constructed tower at site of work.

(a) Gin poles

(b) Platform

(c) Derrick tower

(d) Travelling

Answer 1

The correct answer is (c) Derrick tower

Easy explanation: A Gantry is used to replace ordinary scaffolding and it lifts and moves material of all types. Derrick tower Gantry is very much suitable for lifting and moving the material in the construction of very tall structures.