Mechanical Operations Limestone is normally crushed in a Roll crusher Tube mill Hammer crusher Ball mill Roll crusher Tube mill Hammer crusher Ball mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A compressible cake has the Same porosity throughout the cake thickness None of these Maximum porosity at the upstream side Maximum porosity at the filter medium Same porosity throughout the cake thickness None of these Maximum porosity at the upstream side Maximum porosity at the filter medium ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The process by which fine solids is removed from liquids is termed as Classification Flocculation Sedimentation Decantation Classification Flocculation Sedimentation Decantation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator? Cresylic acid Calcium carbonate Copper sulphate Sodium carbonate Cresylic acid Calcium carbonate Copper sulphate Sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Work index is defined as the 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 (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product passes a 200 mesh screen Energy needed to crush one ton of feed to 100 microns Energy needed to crush one tonne of feed to 200 microns 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 (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product passes a 200 mesh 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 Which of the following is not a wet classifier? Hydrocyclones None of these Dorr Oliver rake classifier Sharpies supercentrifuge Hydrocyclones None of these Dorr Oliver rake classifier Sharpies supercentrifuge ANSWER DOWNLOAD EXAMIANS APP
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