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Mechanical Operations

Mechanical Operations
Sauter mean diameter is the same as the __________ mean diameter.

Geometric
Arithmetic
Mass
Volume-surface

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Mechanical Operations
Grindability of a material does not depend upon its

Size
Toughness
Elasticity
Hardness

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Mechanical Operations
__________ is a cohesive solid.

Wet clay
Sand
Wheat
None of these

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Mechanical Operations
In washing type plate and frame filter press, the ratio of washing rate to the final filtrate rate is

1
4
1/2
1/4

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Mechanical Operations
Mixing mechanism employed in a pan mixer is by

Dispersion
Kneading
Mulling
None of these

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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?

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

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