Which of the following terminology is not used for size reduction of materials to fine sizes or powders ?

A. Trough washer
B. Baum jig washer
C. Spiral separator
D. Froth floatation

A. Propellers
B. Turbine agitators
C. Multiple blade paddles
D. None of these

A. Square inch
B. Linear inch
C. Square foot
D. Linear foot

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. π = (A/D2)
B. 2π = (2A/D2)
C. π/6 = (V/D3)
D. AD/V

A. Attrition
B. Compression
C. Impact
D. Cutting