Mechanical Operations In screen analysis, the notation +5 mm/-10 mm means particles passing through Neither 5 mm nor 10 mm screen 10 mm screen and retained on 5 mm screen Both 5 mm and 10 mm screens 5 mm screen and retained on 10 mm screen Neither 5 mm nor 10 mm screen 10 mm screen and retained on 5 mm screen Both 5 mm and 10 mm screens 5 mm screen and retained on 10 mm screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultrafine grinders operate principally by Impact Slow compression Attrition Cutting action Impact Slow compression Attrition Cutting action ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Xanthates are used in the froth floatation process as a/an Collector Activator Frother Conditioner Collector Activator Frother Conditioner ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following gives the work required for size reduction of coal to -200 mesh in a ball mill most accurately ? Bond's law Rittinger's law Kick's law None of these Bond's law Rittinger's law Kick's law None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Work index is defined as the 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 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 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The constants (Kb, Kr and Kk) used in the laws of crushing (i.e., Bond's law, Rittinger's law and Kick's law) depend upon the Type of crushing machine Neither A nor B Feed material Both A & B Type of crushing machine Neither A nor B Feed material Both A & B ANSWER DOWNLOAD EXAMIANS APP
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