Mechanical Operations
Metallic wire mesh is used as a filtering medium for the separation of dust from dust laden gas in case of a/an

Venturi scrubber
Air filter
Hydrocyclones
Bag filter

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Mechanical Operations
In case of grinding in a ball mill

All of these
Wet grinding achieves a finer product size than dry grinding
Its capacity decreases with increasing fineness of the products
Grinding cost and power requirement increases with increasing fineness of the products

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