Mechanical Operations

A. Ball mill
B. Hammer mill
C. Jet mill
D. Pin mill

A. Decreases
B. Increases
C. Is same as for coarser grinding
D. Is 1.5 times that for coarser grinding

A. Results in increased capacity
B. Consumes less power
C. Consumes more power
D. Both A. and C.

A. Bucket conveyor
B. Flight conveyor
C. Screw conveyor
D. Both B. and C.

A. Jaw crusher, Ball mill, Fluid energy mill
B. Ball mill, Jaw crusher, Fluid energy mill
C. Fluid energy mill, Jaw crusher, Ball mill
D. Fluid energy mill, Ball mill, Jaw crusher

A. Electrolyte
B. Surface active agent
C. Both A. & B.
D. Neither A. nor B.

A. Sparkler
B. Plate and frame
C. Centrifugal
D. Rotary drum vacuum

A. Venturi atomiser
B. Gravity settling chamber
C. Electro-static precipitator
D. Cyclone separator

A. 15°
B. 30°
C. 45°
D. 60°

A. Cast iron
B. Minimum size
C. Maximum size
D. Elliptical