A. Tabling
B. Elutriation
C. Heavy media separation
D. None of these
A. Has a higher length/diameter ratio
B. Produces a coarser product
C. Has a higher diameter/length ratio
D. Uses much larger balls
A. Increase the porosity
B. Increase the compressibility co-efficient
C. Decrease the porosity
D. Decrease the compressibility co-efficient
A. Gyratory crusher
B. Ball mill
C. Tube mill
D. Squirrel-cage disintegrator
A. Flocculation
B. Froth floatation
C. Jigging & tabling
D. None of these
A. Decreases
B. Increases
C. Is same as for coarser grinding
D. Is 1.5 times that for coarser grinding
A. Work required to form a particle of any size is proportional to the square of the surface to
volume ratio of the product
B. Work required to form a particle of a particular size is proportional to the square root of the
surface to volume ratio of the product
C. Work required in crushing is proportional to the new surface created
D. For a given machine and feed, crushing efficiency is dependent on the size of the feed &
product