Equivalent diameter of a particle is the diameter of the sphere having the same __________________?
A. Ratio of surface to volume as the actual volume
B. Ratio of volume to surface as the particle
C. Volume as the particle
D. None of these
A. Ratio of surface to volume as the actual volume
B. Ratio of volume to surface as the particle
C. Volume as the particle
D. None of these
A. ½w2 . R2 . ρL
B. ½w2 . δ2 . ρL
C. ½w2 . δρL (2R + δ)
D. ½w2 . R . ρL(R + 2δ)
A. 10
B. 20
C. 25
D. 30
A. Impact
B. Attrition
C. Cutting
D. Compression
Colloid mills achieve size reduction mainly by___________________? Read More »
Mechanical Operations A. Important in the beginning of filtration
B. Decreased with the time of filtration
C. Independent of pressure drop
D. None of these
Cake resistance is___________________? Read More »
Mechanical Operations A. Compartment
B. Tube
C. Rod
D. Pebble
A. AD/V
B. D/V
C. A/V
D. √(AD/V)
For spheres, the specific surface shape factor is given by___________________? Read More »
Mechanical Operations A. Metalliferous ores
B. Non-metallic ores
C. Basic slags
D. Asbestos & mica
A. Flight
B. Drag or slat
C. Belt
D. Ribbon
Handling of ashes and similar materials can be done best by a ______________ conveyor? Read More »
Mechanical Operations A. Rod mill
B. Fluid energy mill
C. Gyratory crusher
D. Ball mill