Mechanical Operations The specific surface of sherical particles is proportional to (where, Dp = diameter of particle). Dp 1/D²p 1/Dp D²p Dp 1/D²p 1/Dp D²p ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Balls for ball mills are never made of Cast iron Alloy steel Forged/cast steel Lead Cast iron Alloy steel Forged/cast steel Lead ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of materials of the same density based on their sizes by using then-different rates of flow is called Elutriation Sizing Sorting Flocculation Elutriation Sizing Sorting Flocculation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not an ultrafine grinder (colloid mill)? Hammer mills with internal classification Agitated mills and fluid energy mills Toothed roll crusher Micronizers Hammer mills with internal classification Agitated mills and fluid energy mills Toothed roll crusher Micronizers ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultracentrifuges running at speeds upto 100000 rpm is normally used for the 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 Concentration of rubber latex Dewaxing of lubricating oil ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Wet grinding in a revolving mill __________ as compared to dry grinding. Gives less wear on chamber walls Increases capacity Complicates handling of the product Requires more energy Gives less wear on chamber walls Increases capacity Complicates handling of the product Requires more energy ANSWER DOWNLOAD EXAMIANS APP
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