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.Management Sciences
Category: Mechanical Operations
Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to increase the porosity of the final filter cake & reducing the cake resistance during filtration. Filter aid is_______________?
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A. Added to the feed slurry
B. Pre-coated on the filter medium prior to filtration
C. Separated from the cake by dissolving solids or by burning it off
D. All A, B. & C.
Moisture can be removed from lubricating oil using_________________?
A. Tubular centrifuge
B. Clarifier
C. Sparkler filter
D. Vacuum leaf filter
Gravity stamp mill is meant for the ___________________ crushing?
A. Primary
B. Intermediate
C. Fine
D. Ultrafine
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