Mechanical Operations Work index is defined as the Energy needed to crush one ton of feed to 100 microns Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product passes a 200 mesh screen Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of the product passes through a 100 micron screen Energy needed to crush one tonne of feed to 200 microns Energy needed to crush one ton of feed to 100 microns Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product passes a 200 mesh screen Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of the product passes through a 100 micron screen Energy needed to crush one tonne of feed to 200 microns ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gravity settling process is not involved in the working of a Classifier Sedimentation tank Hydrocyclone Dorr-thickener Classifier Sedimentation tank Hydrocyclone Dorr-thickener ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pine oil used in froth floatation technique acts as a/an Collector Modifier Frother Activator Collector Modifier Frother Activator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter medium resistance is important during the __________ of filtration. Final stages None of these Early stages Entire process Final stages None of these Early stages Entire process 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 S All of these 1/R 1/μ S All of these 1/R ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals. Concentration ratio Separation efficiency None of these Selectivity index Concentration ratio Separation efficiency None of these Selectivity index ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS