Energy requirement (per unit mass of material crushed/ground) is highest for__________________?

Related Mcqs:

Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for__________________?

A. British standard screens B. German standard screens (DIN 1171) etc C. American standard screens (ASTM and Tyler standard screens) D. All A., B. and C....

Size reduction of ice and gypsum can be accomplished suitably by a _______________ crusher?

A. Blake jaw B. Toothed roll C. Gyratory D. None of these...

Maximum size reduction in a ball mill is done by the, ______________ action?

A. Attrition B. Compression C. Impact D. Cutting...

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_______________?

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....

Which of the following can be most effectively used for clarification of lube oil and printing ink ?

A. Sparkler filter B. Pre-coat filter C. Disc-bowl centrifuge D. Sharpies super-centrifuge...