Mechanical Operations Removal of activated carbon from glycerine is done by Rotary vacuum filter Batch basket centrifuge None of these Plate and frame filter Rotary vacuum filter Batch basket centrifuge None of these Plate and frame filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following size reduction equipments employs mainly attrition for ultrafine grinding? Jet mills All of these Fluid energy mill Micronizer Jet mills All of these Fluid energy mill Micronizer ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The reduction ratio for grinders is defined as(where, Df and Dp are average diameters of feed and product respectively). Dp/Df Df/Dp None of these Df - Dp Dp/Df Df/Dp None of these Df - Dp ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations According to Bond crushing law, the work required to form particle of size 'D' from very large feed is (where (S/V)p and (S/V)f are surface to volume ratio of the product and feed respectively). (S/V)p √(S/V)p (S/V)f (S/V)²p (S/V)p √(S/V)p (S/V)f (S/V)²p ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following mineral dressing operations is termed as 'comminution'? Panning Spiralling Tabling None of these Panning Spiralling Tabling None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the Venturi atomiser Gravity settling chamber Electro-static precipitator Cyclone separator Venturi atomiser Gravity settling chamber Electro-static precipitator Cyclone separator ANSWER DOWNLOAD EXAMIANS APP
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