A. Roll-crusher
B. Squirrel-cage disintegrator
C. Ball mill
D. Tube mill
Related Mcqs:
- Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the _________________?
A. Blake jaw crusher
B. Cage mill
C. Stamp mill
D. Bradford’s breaker - Which of the following is the most suitable for handling fibrous and dense slurries ?
A. Propeller agitator
B. Cone type agitator
C. Turbine agitator
D. Radial propeller agitator - Dispersion of a gas through liquid is done by using a__________________?
A. Sparger
B. Kneader
C. Masticator
D. None of these - Molten ammonium nitrate is mixed with ground limestone in fertilizer plant in a__________________?
A. Pug mill
B. Mixer-extruder
C. Banbury mixer
D. Muller mixer - For grinding of cereals, grains, spices, pigments, saw dust, cork etc., the most extensively used size reduction equipment is a__________________?
A. Buhrstone mill
B. Ball mill
C. Crushing rolls
D. Hammer mill - Rittinger’s number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger’s number of a material indicates its________________?
A. Easier grindability
B. Poor grindability
C. High power consumption in grinding
D. None of these - Width and speed of a conveyor belt depends upon the ______________ of the material?
A. Lump size
B. Bulk density
C. Both A. & B.
D. Neither A. nor B. - Which of the following is the hardest material ?
A. Calcite
B. Quartz
C. Corundum
D. Gypsum - A sand mixture was screened through a standard 10-mesh screen. The mass fraction of the oversize material in feed, overflow and underflow were found to be 0.38, 0.79 and 0.22 respectively. The screen effectiveness based on the oversize is_________________?
A. 0.50
B. 0.58
C. 0.68
D. 0.62 - Grinding characteristic of a material is given by its___________________?
A. HGI
B. Angle of repose
C. Shatter index
D. Abrasion index
