Mechanical Operations Ball mills and tube mills with flint or porcelain balls are used for size reduction of Rubber Asbestos Limestone Non-metallic ores Rubber Asbestos Limestone Non-metallic ores ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Choke crushing (in case of a Jaw crusher) compared to free crushing Consumes less power Both A and C Results in increased capacity Consumes more power Consumes less power Both A and C Results in increased capacity Consumes more power ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The value of work index does not change materially from one equipment to another. If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be 1.34 Wi 0.5 Wi 3.34 Wi Wi 1.34 Wi 0.5 Wi 3.34 Wi Wi ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations With increase in the pressure drop across the cake, the specific cake resistance for the compressible sludge Decreases Increases linearly Remains constant Increases Decreases Increases linearly Remains constant Increases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The main differentiation factor between tube mill and ball mill is the Final product size Operating speed Length to diameter ratio Size of the grinding media Final product size Operating speed Length to diameter ratio Size of the grinding media ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Mechanical conveyors which push the material along an endless trough or tube are called scrappers. Which of the following conveying equipments comes under the category of 'scrappers'? Screw conveyor Flight conveyor Bucket conveyor Both B and C Screw conveyor Flight conveyor Bucket conveyor Both B and C ANSWER DOWNLOAD EXAMIANS APP
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