Mechanical Operations Temperature of the product during ultrafine grinding May increase or decrease ; depends on the material being ground Increases Decreases Remains constant May increase or decrease ; depends on the material being ground Increases Decreases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called Decantation Classification Sedimentation Clarification Decantation Classification Sedimentation Clarification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For benefication of iron ore, the most commonly used method is None of these Jigging & tabling Froth floatation Flocculation None of these Jigging & tabling Froth floatation Flocculation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A filter press is Having prohibitively high maintenance cost Not suitable for wide range of materials under varying operating conditions of cake thickness and pressure A batch filter Not suitable, if the liquid is the main product Having prohibitively high maintenance cost Not suitable for wide range of materials under varying operating conditions of cake thickness and pressure A batch filter Not suitable, if the liquid is the main product 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 Sodium carbonate Calcium carbonate Copper sulphate Cresylic acid Sodium carbonate Calcium carbonate Copper sulphate 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 ? Rittinger's law Kick's law Bond's law None of these Rittinger's law Kick's law Bond's law None of these ANSWER DOWNLOAD EXAMIANS APP
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