Mechanical Operations For efficient grinding, ball mills must be operated At a speed more than the critical speed At a speed less than the critical speed At a speed equal to the critical speed With minimum possible small balls At a speed more than the critical speed At a speed less than the critical speed At a speed equal to the critical speed With minimum possible small balls ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to increase the porosity of the final filter cake & reducing the cake resistance during filtration. Filter aid is All of these Precoated on the filter medium prior to filtration Added to the feed slurry Separated from the cake by dissolving solids or by burning it off All of these Precoated on the filter medium prior to filtration Added to the feed slurry Separated from the cake by dissolving solids or by burning it off ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gizzlies are used for separating __________ solids. Any size Coarse None of these Fine Any size Coarse None of these Fine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The unit of filter medium resistance is Cm⁻¹ Gm⁻¹ Gm/cm⁻¹ Cm/gm⁻¹ Cm⁻¹ Gm⁻¹ Gm/cm⁻¹ Cm/gm⁻¹ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen capacity is expressed in terms of Tons/ft² Tons/hr Both A & B Tons/hr-ft² Tons/ft² Tons/hr Both A & B Tons/hr-ft² ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the Bradford's breaker Stamp mill Cage mill Blake jaw crusher Bradford's breaker Stamp mill Cage mill Blake jaw crusher ANSWER DOWNLOAD EXAMIANS APP
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