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
compression
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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