1000+ Mechanical Operations Objective Type Questions and Answers Pdf - 1

Question: 1

Sticky materials are transported by

(A) hydraulic conveyor

(B) belt conveyor

(C) screw conveyor

(D) apron conveyor

Ans: C

screw conveyor

Question: 2

Size reduction does not occur due to compression in case of

(A) smooth roll crushers

(B) jaw crushers

(C) gyratory crushers

(D) rod mills

Ans: D

rod mills

Question: 3

The material is crushed in a gyratory crusher by the action of

(A) attrition

(B) cutting

(C) compression

(D) impact

Ans: C


Question: 4

Cyclones are used primarily for separating

(A) solids from solids

(B) liquids

(C) solids from liquids

(D) solids

Ans: C

solids from liquids

Question: 5

Carbon black is pulverised in a

(A) hammer crusher

(B) gyratory crusher

(C) roll crusher

(D) ball mill

Ans: D

ball mill

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