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? Calcium carbonate Copper sulphate Cresylic acid Sodium carbonate Calcium carbonate Copper sulphate Cresylic acid Sodium carbonate ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reduction ratio of crushers is the Ratio of feed opening to discharge opening Ratio of discharge opening to feed opening None of these Determining factor for minimum dia of the feed and the product Ratio of feed opening to discharge opening Ratio of discharge opening to feed opening None of these Determining factor for minimum dia of the feed and the product ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Equivalent diameter of a particle is the diameter of the sphere having the same None of these Volume as the particle Ratio of surface to volume as the actual volume Ratio of volume to surface as the particle None of these Volume as the particle Ratio of surface to volume as the actual volume Ratio of volume to surface as the particle ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In closed circuit grinding as compared to open circuit grinding, the Operation is economical Product has lesser size uniformity Production rate at a given limiting size is lower Specific surface of product is more Operation is economical Product has lesser size uniformity Production rate at a given limiting size is lower Specific surface of product is more ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Energy consumption in a crusher decreases with increase in the Size of the product (at constant feed size) Size of feed (at constant reduction ratio) Capacity of the crushing machine All of these Size of the product (at constant feed size) Size of feed (at constant reduction ratio) Capacity of the crushing machine All of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The filter medium resistance is controlled by Cake thickness Pressure drop alone Both pressure drop and flow rate Flow rate alone Cake thickness Pressure drop alone Both pressure drop and flow rate Flow rate alone ANSWER DOWNLOAD EXAMIANS APP
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