Mechanical Operations 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 Classification Sedimentation Clarification Decantation Classification Sedimentation Clarification Decantation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Chance process is used for the Concentration of pyrites Water treatment Concentration of iron ore Cleaning of coal Concentration of pyrites Water treatment Concentration of iron ore Cleaning of coal ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultracentrifuges running at speeds upto 100000 rpm is normally used for the Concentration of rubber latex Separation of isotopes based on their density or molecular weights difference Separation of cream from milk Dewaxing of lubricating oil Concentration of rubber latex Separation of isotopes based on their density or molecular weights difference Separation of cream from milk Dewaxing of lubricating oil ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration rate through a filter cake is proportional to (where, S = filtering surface R = specific cake resistance μ = viscosity of the filtrate) 1/μ 1/R S All of these 1/μ 1/R S All of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals. Selectivity index Separation efficiency Concentration ratio None of these Selectivity index Separation efficiency Concentration ratio None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations According to Bond crushing law, the work required to form particle of size 'D' from very large feed is (where (S/V)p and (S/V)f are surface to volume ratio of the product and feed respectively). √(S/V)p (S/V)²p (S/V)p (S/V)f √(S/V)p (S/V)²p (S/V)p (S/V)f ANSWER DOWNLOAD EXAMIANS APP
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