Mechanical Operations Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill. Hammer Neither A nor B Both A & B Cage Hammer Neither A nor B Both A & B Cage ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gold ore concentration is mostly done using Froth floatation Elutriation Jigging Tabling Froth floatation Elutriation Jigging Tabling ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations With increase in the capacity of screens, the screen effectiveness Decreases exponentially Decreases Remains unchanged Increases Decreases exponentially Decreases Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Work index is defined as the 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 ton of feed to 100 microns Energy needed to crush one tonne of feed to 200 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 ton of feed to 100 microns Energy needed to crush one tonne of feed to 200 microns ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Percentage of drum submerged in the slurry in case of rotary drum filter is 85 30 3 25 85 30 3 25 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen capacity is not a function of Atmospheric humidity Screening mechanism Screening surface Its openings size Atmospheric humidity Screening mechanism Screening surface Its openings size ANSWER DOWNLOAD EXAMIANS APP
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