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Dear candidates you will find MCQ questions of Mechanical Operations here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

Q. 1) The important dimensional group involved in the power requirement calculation in mixing operation is the _________ number.

(A) Reynold's
(B) Froude
(C) Both (A) & (B)
(D) Neither (A) nor (B)
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Q. 2) _______ are mixed using ribbon blenders.

(A) Lumpy solids and low viscosity liquids
(B) Dry powders
(C) High viscosity liquids
(D) Thick pastes
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Q. 3) _______ are used for the separation of coarse particles from a slurry of fine particles.

(A) Thickeners
(B) Classifiers
(C) Hydrocyclones
(D) Decanters
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Q. 4) _______ baffles are provided in ball mills.

(A) Horizontal
(B) No
(C) Only two
(D) None of these
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Q. 5) _______ balls capable of grinding the feed in a ball mill gives the maximum efficiency.

(A) Cast iron
(B) Minimum size
(C) Maximum size
(D) Elliptical
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Q. 6) _________ Centrifuge is normally used in sugar mills.

(A) Tubular bowl
(B) Disc-bowl
(C) Suspended batch basket
(D) Perforated horizontal basket continuous
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Q. 7) _______ centrifuge is the most suitable for separation of non-friable crystals.

(A) Tubular bowl
(B) Disc-bowl
(C) Perforated horizontal basket continuous
(D) Suspended batch basket
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Q. 8) ______ conveyor is the most suitable for long distance transportation of cold, nonabrasive granular/irregular shape/fine materials.

(A) Bucket
(B) Belt
(C) Screw
(D) Apron
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Q. 9) _______ conveyor is the most suitable for short distance transportation of non-abrasive loose materials like garbage, grain, food wastes etc.

(A) Flight
(B) Screw
(C) Drag
(D) Belt
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Q. 10) ________ conveyors are also called scrapers.

(A) Apron
(B) Screw
(C) Helical flight
(D) Both (B) & (C)
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