Related Questions

Tabular bowl centrifuges as compared to disk bowl centrifuges
A Operate at higher speed
B Employ bowl of larger diameter
C Can't be operated under pressure/vacuum
D Can't be used for separation of fine suspended solids from a liquid
__________ are used for the separation of coarse particles from a slurry of fine particles.
A Thickeners
B Classifiers
C Hydrocyclones
D Decanters
Separation of solid particles based on their densities is called
A Sizing
B Sorting
C Clarification
D Dispersion
Solid particles separation based on the difference in their flow velocities through fluids is termed as the
A Clarification
B Classification
C Elutriation
D Sedimentation
Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called
A Classification
B Sedimentation
C Clarification
D Decantation
For the non catalytic reaction of particles with surrounding fluid, the same needed to achive the same fractional conversion for particles of different unchanging sizes is proportional to the particle diameter, when the __________ is the controlling resistance.
A Film diffusion
B Diffusion through ash layer
C Chemical reaction
D Either A, B or C
For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance.
A Film diffusion
B Diffusion through ash layer
C Chemical reaction
D Either A, B or C
Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called
A Classification
B Froth floatation
C Thickening
D Clarification
Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their
A Particle sizes
B Densities
C Terminal velocities
D None of these
The uniformity of a gas fluidised bed depends upon the __________ of the solid particles.
A Size
B Surface properties
C Both A and B
D Neither A nor B

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