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? Sodium carbonate Copper sulphate Calcium carbonate Cresylic acid Sodium carbonate Copper sulphate Calcium carbonate Cresylic acid ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not a non-metalliferous mineral? Quartz Cassiterrite Calcite Fluorspar Quartz Cassiterrite Calcite Fluorspar ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultracentrifuges running at speeds upto 100000 rpm is normally used for the Concentration of rubber latex Dewaxing of lubricating oil Separation of cream from milk Separation of isotopes based on their density or molecular weights difference Concentration of rubber latex Dewaxing of lubricating oil Separation of cream from milk Separation of isotopes based on their density or molecular weights difference ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of Electromagnets Cams or eccentric shafts Unblanced fly wheels Either A, B or C Electromagnets Cams or eccentric shafts Unblanced fly wheels Either A, B or C ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gizzlies are used for separating __________ solids. Fine Coarse None of these Any size Fine Coarse None of these Any size ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a hammer crusher, Maximum acceptable feed size is 30 cms Crushing takes place by impact breaking All of these Reduction ratio can be varied by adjusting the distance from cage to hammers Maximum acceptable feed size is 30 cms Crushing takes place by impact breaking All of these Reduction ratio can be varied by adjusting the distance from cage to hammers ANSWER DOWNLOAD EXAMIANS APP
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