Mechanical Operations Which of the following is not a non-metalliferous mineral? Calcite Quartz Fluorspar Cassiterrite Calcite Quartz Fluorspar Cassiterrite ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to increase the porosity of the final filter cake & reducing the cake resistance during filtration. Filter aid is Separated from the cake by dissolving solids or by burning it off All of these Precoated on the filter medium prior to filtration Added to the feed slurry Separated from the cake by dissolving solids or by burning it off All of these Precoated on the filter medium prior to filtration Added to the feed slurry ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm)? Baum jig washer Froth floatation Spiral separator Trough washer Baum jig washer Froth floatation Spiral separator Trough washer ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a roll crusher, the specific power consumption and the production rate is affected by the Both A & B Differential roll speed Reduction ratio Neither A nor B Both A & B Differential roll speed Reduction ratio Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following screens has the maximum capacity? Grizzlies Trommels Vibrating screen Shaking screen Grizzlies Trommels Vibrating screen Shaking screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Rittinger's crushing law states that Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product For a given machine and feed, crushing efficiency is dependent on the size of the feed & product Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product Work required in crushing is proportional to the new surface created Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product For a given machine and feed, crushing efficiency is dependent on the size of the feed & product Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product Work required in crushing is proportional to the new surface created ANSWER DOWNLOAD EXAMIANS APP
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