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Mechanical Operations

Mechanical Operations
Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate)

S
All of these
1/μ
1/R

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Mechanical Operations
__________ is used for producing a thick suspension from a thin slurry.

Plate and frame filter press
Pressure filter thickener
Cartridge filter
Rotary drum vacuum filter

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Mechanical Operations
Size reduction mechanism used in Jaw crushers is

Cutting
Compression
Impact
Attrition

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Mechanical Operations
For coarse reduction of hard solids, use

Compression
Cutting
Attrition
Impact

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Mechanical Operations
The filter medium resistance is controlled by

Both pressure drop and flow rate
Cake thickness
Flow rate alone
Pressure drop alone

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Mechanical Operations
Weber number is significant and is concerned with the

Liquid-liquid mixing
Suspension of solid in liquid
Solid-liquid mixing
Dispersion of liquid in liquid

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