Mineral Dressing Objective Quiz, Multiple Choice Questions Pdf - 2

Question: 6

Crushing efficiency is the ratio of the

(A) Energy absorbed by the solid to the surface energy created by the crushing

(B) Energy fed to the machine to the surface energy created by the crushing

(C) Energy absorbed by the solid to that fed to the machine

(D) Surface energy created by crushing to the energy absorbed by the solid

Question: 7

Which is a comminuting equipment?

(A) Crusher

(B) Classifier

(C) Trommel

(D) Filter

Question: 8

Stamp mills are generally used for crushing

(A) Gold ores

(B) Iron ores

(C) Talc

(D) Diamond

Question: 9

In bag filters, filter fabrics are never made of the

(A) Nylon fibres

(B) Cotton fibres

(C) Polyester fibres

(D) Metallic wire woven mesh

Question: 10

Which of the following cannot be recommended for transportation of abrasive materials?

(A) Flight conveyor

(B) Chain conveyor

(C) Belt conveyor

(D) Apron conveyor