Mechanical Operations What is the selectivity index, if the grade of tailings & concentrate is the same? ∞ 0.5 1 ∞ 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Out of the following size reduction equipments, the maximum feed size can be accepted by the Jaw crusher Jet pulveriser Ball mill Tube mill Jaw crusher Jet pulveriser Ball mill Tube mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A tube mill compared to a ball mill Uses much larger balls Has a higher diameter/length ratio Produces a coarser product Has a higher length/diameter ratio Uses much larger balls Has a higher diameter/length ratio Produces a coarser product Has a higher length/diameter ratio ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The main size reduction operation in ultrafine grinders is Compression Cutting Attrition Impact Compression Cutting Attrition Impact ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Solid particles of different densities are separated by Filters Cyclones Sorting classifier Thickness Filters Cyclones Sorting classifier Thickness ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Two particles are called to be equal settling, if they are having the same. Size Terminal velocities in the same fluid & in the same field of force Specific gravity None of these Size Terminal velocities in the same fluid & in the same field of force Specific gravity None of these ANSWER DOWNLOAD EXAMIANS APP
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