Question

__________ is used to excavate the trenches of width from 250 mm to 450 mm and depth 4 m with accuracy and speed.

(a) Ripper

(b) Rooter

(c) Scarifier

(d) Ditcher

Answer 1

Right choice is (d) Ditcher

Easy explanation: Ditcher is mainly used to excavate Trenches from mains, gas lines, oil pipelines, telephone cable, drainage lines etc. These machines are generally crawler mounted. They can be wheel type or ladder type also.