Mechanical Operations

A. Grizzlies
B. Trommels
C. Shaking screen
D. Vibrating screen

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

A. Classifier
B. Cyclone separator between mill & classifier
C. Both A. & B.
D. Neither A. nor B.

A. Ribbon conveyor
B. Flight conveyor
C. Bucket elevators
D. Drag conveyor

A. Talc
B. Feldspar
C. Corundum
D. Calcite

A. Increases
B. Decreases
C. Remain constant
D. None of these

A. Air filter
B. Bag filter
C. Venturi scrubber
D. Hydrocyclones

A. No units (dimensionless)
B. kWh/ton
C. kW/ton
D. kWh.m1/2/ton