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Mechanical Operations

Mechanical Operations
Filtration of water in a paper mill is done by a/an __________ filter.

Plate and frame
Open sand
Vacuum leaf
Sparkler

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Mechanical Operations
__________ mills are termed as disintegrators.

All of these
Pebble
Compartment
Cage

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Mechanical Operations
Sphericity is the ratio of the surface area of a spherical particle having the same volume as the particle to the surface area of the particle. Which of the following has the maximum value of sphericity?

Cube
Raschig rings
Sphere
Cylinder (L/D = 1)

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Mechanical Operations
Grindability of a material does not depend upon its

Toughness
Hardness
Elasticity
Size

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Mechanical Operations
Basic slag is not ground in

Tube mills
Ball mills
Compartment mills
Jaw crushers

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Mechanical Operations
Fibrous material is broken by a

Tube mill
Ball mill
Rollcrusher
Squirrel-cage disintegrator

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