A. Smooth roll crusher
B. Toothed roll crusher
C. Gyratory crusher
D. Tube mill
A. Impact
B. Attrition
C. Cutting
D. Compression
A. Decreases
B. Increases
C. Remains unchanged
D. May increase or decrease; depends on the machine
A. Sparger
B. Kneader
C. Masticator
D. None of these
A. Light metal powder down upto 4 mesh size
B. Dry chemicals
C. Heavy tonnages of rocks or gravel
D. Powdered food & granular materials
A. Run at very high rpm
B. Suitable for sticky materials
C. Suitable for highly abrasive materials
D. All A., B. and C.
A. Feed material
B. Type of crushing machine
C. Both A. & B.
D. Neither A. nor B.