Mechanical Operations The main differentiation factor between tube mill and ball mill is the Length to diameter ratio Operating speed Size of the grinding media Final product size Length to diameter ratio Operating speed Size of the grinding media Final product size ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a ball mill, the volume occupied by the balls (when the mill is stopped) is about __________ percent of the volume of the mill. 70 35 85 50 70 35 85 50 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size reduction of the __________ can be suitably done by ball mills, crushing rolls and rod mills. Metalliferrous ores Asbestos & mica Basic slags Non-metallic ores Metalliferrous ores Asbestos & mica Basic slags Non-metallic ores ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a hammer crusher, the final product size depends on the Feed rate Clearance between hammer & grinding plates All of these Rotor speed Feed rate Clearance between hammer & grinding plates All of these Rotor speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the Electro-static precipitator Gravity settling chamber Venturi atomiser Cyclone separator Electro-static precipitator Gravity settling chamber Venturi atomiser Cyclone separator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The mechanism of size reduction by a hammer mill is by impact and attrition between the Feed particles Neither A nor B Grinding element & the housing Both A & B Feed particles Neither A nor B Grinding element & the housing Both A & B ANSWER DOWNLOAD EXAMIANS APP
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