A. Flocculation
B. Sedimentation
C. Filtration
D. None of these
The process opposite to ‘dispersion’ is termed as the___________________? Read More »
Mechanical Operations A. S
B. 1/S
C. S2
D. √S
Screen capacity is proportional to (where, S = screen aperture)____________________? Read More »
Mechanical Operations A. Its openings size
B. Screening mechanism
C. Screening surface
D. Atmospheric humidity
Screen capacity is not a function of__________________? Read More »
Mechanical Operations A. Roll crusher
B. Hammer crusher
C. Ball mill
D. Tube mill
Limestone is normally crushed in a _____________________? Read More »
Mechanical Operations A. c/s
B. s/c
C. s . c
D. 1/s . c
A. Rate
B. Pressure
C. Both A. & B.
D. Neither A. nor B.
A. Increases
B. Decreases
C. Remain constant
D. May increase or decrease; depends on the material being ground
Temperature of the product during ultrafine grinding_____________________? Read More »
Mechanical Operations A. Ball mill
B. Hammer mill
C. Jet mill
D. mill
To produce talcum powder, use_____________________? Read More »
Mechanical Operations A. Decreases
B. Increases
C. Is same as for coarser grinding
D. Is 1.5 times that for coarser grinding
As the product becomes finer, the energy required for grinding___________________? Read More »
Mechanical Operations A. Results in increased capacity
B. Consumes less power
C. Consumes more power
D. Both A. and C.
Choke crushing (in case of a Jaw crusher) compared to free crushing__________________? Read More »
Mechanical Operations