- (A) 0.5
- (B) 1
- (C) √2
- (D) √3
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- (A) Sparkler
- (B) Plate and frame
- (C) Vacuum leaf
- (D) Pre-coat
- (A) Flight
- (B) Screw
- (C) Drag
- (D) Belt
- (A) Particle sizes
- (B) Densities
- (C) Terminal velocities
- (D) None of these
- (A) Apron
- (B) Screw
- (C) Helical flight
- (D) Both
- (A) Roll-crusher
- (B) Squirrel-cage disintegrator
- (C) Ball mill
- (D) Tube mill
- (A) Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of the product passes through a 100 micron screen
- (B) Energy needed to crush one tonne of feed to 200 microns
- (C) Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product passes a 200 mesh screen
- (D) Energy needed to crush one ton of feed to 100 microns
- (A) π = (A/D2)
- (B) 2π = (2A/D2)
- (C) π/6 = (V/D3)
- (D) AD/V
- (A) Increases continuously
- (B) Decreases gradually
- (C) Remains constant
- (D) None of these
- (A) Size
- (B) Density
- (C) Wettability
- (D) Electrical & magnetic properties
