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Mechanical Operations

Mechanical Operations
In case of a plate and frame filter press, filtrate flow through the cake follows __________ flow.

Plug
None of these
Laminar
Turbulent

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Mechanical Operations
Power required to drive a ball mill with a particular ball load is proportional to (where, D = diameter of ball mill )

1/D2.5
1/D
D2.5
D

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Mechanical Operations
Choke crushing (in case of a Jaw crusher) compared to free crushing

Consumes more power
Both A and C
Results in increased capacity
Consumes less power

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Mechanical Operations
Separation of solid particles based on their densities is called

Sorting
Sizing
Dispersion
Clarification

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Mechanical Operations
The specific cake resistance for compressible sludges is a function of the pressure drop

Over medium
Over cake
None of these
Overall

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Mechanical Operations
Crushing efficiency of a machine ranges between __________ percent.

50 to 70
0.1 to 2
20 to 25
5 to 10

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