Mechanical Operations __________ are used for the separation of coarse particles from a slurry of fine particles. Classifiers Thickeners Decanters Hydrocyclones Classifiers Thickeners Decanters Hydrocyclones ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake) Independent of ΔP ∝ 1/ ΔP ∝ √ΔP ∝ ΔP Independent of ΔP ∝ 1/ ΔP ∝ √ΔP ∝ ΔP ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter aid is used to Act as a support base for the septum Increase the rate of filtration Increase the porosity of the cake Decrease the pressure drop Act as a support base for the septum Increase the rate of filtration Increase the porosity of the cake Decrease the pressure drop ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Shape factor for a cylinder whose length equals its diameter is 2.0 1.0 0.5 1.5 2.0 1.0 0.5 1.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is 0.90 μm/s 1 μm/s 0.02 μm/s 22.1 μm/s 0.90 μm/s 1 μm/s 0.02 μm/s 22.1 μm/s ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the Density separation Volatile matter content Differential wettability Size Density separation Volatile matter content Differential wettability Size ANSWER DOWNLOAD EXAMIANS APP
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