1000+ Mechanical Operations MCQ Questions & Answers Pdf - 1
Question: 1
Fluid energy mill comes in the category of
(A) ultrafine grinder
(B) cutter
(C) crusher
(D) grinder
Ans: A
ultrafine grinder
Question: 2
The filtrate flow rate in constant pressure filtration
(A) may increase or decrease depends on the pressure
(B) remains constant throughout
(C) continuously increases
(D) continuously decreases
Ans: D
continuously decreases
Question: 3
In a gyratory crusher size reduction is effected primarily by
(A) attrition
(B) impact
(C) cutting action
(D) compression
Ans: D
compression
Question: 4
The stress pressure is
(A) zero at the filter medium
(B) maximum at the filter medium
(C) maximum at the upstream face
(D) minimum at the filter medium
Ans: B
maximum at the filter medium
Question: 5
Driving force in case of filtration by a centrifuge is the
(A) narrow diameter of the vessel
(B) formation of highly porous cake
(C) speed f the centrifuge
(D) centrifugal pressure exerted by the liquid
Ans: D
centrifugal pressure exerted by the liquid
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