Mechanical Operations Ultracentrifuges running at speeds upto 100000 rpm is normally used for the Dewaxing of lubricating oil Separation of cream from milk Concentration of rubber latex Separation of isotopes based on their density or molecular weights difference Dewaxing of lubricating oil Separation of cream from milk Concentration of rubber latex Separation of isotopes based on their density or molecular weights difference ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A tube mill compared to a ball mill Produces a coarser product Uses much larger balls Has a higher diameter/length ratio Has a higher length/diameter ratio Produces a coarser product Uses much larger balls Has a higher diameter/length ratio Has a higher length/diameter ratio ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not used as a surface active agent in a flocculation operation? Lime Quartz Alumina Sodium silicate Lime Quartz Alumina Sodium silicate ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The maximum slope of a belt conveyor can be 60° 30° 45° 15° 60° 30° 45° 15° ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following clay mixing devices is vacuum operated for deairation of clay? Muller-mixer Banbery mixer None of these Pug mill Muller-mixer Banbery mixer None of these Pug mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Mechanical conveyors which push the material along an endless trough or tube are called scrappers. Which of the following conveying equipments comes under the category of 'scrappers'? Both B and C Bucket conveyor Screw conveyor Flight conveyor Both B and C Bucket conveyor Screw conveyor Flight conveyor ANSWER DOWNLOAD EXAMIANS APP
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