Mechanical Operations Size reduction of the __________ can be suitably done by ball mills, crushing rolls and rod mills. Non-metallic ores Basic slags Asbestos & mica Metalliferrous ores Non-metallic ores Basic slags Asbestos & mica Metalliferrous ores ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations If dp is the equivalent diameter of a non-spherical particle, Vp its volume and sp its surface area, then its sphericity is Φs is defined by Φs = 6 Vp/dp sp Φs = 6 dp Sp/Vp Φs = Vp/dp sp Φs = dp Sp/Vp Φs = 6 Vp/dp sp Φs = 6 dp Sp/Vp Φs = Vp/dp sp Φs = dp Sp/Vp ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The optimum moisture content in solids to be crushed/ground ranges from __________ percent. 10 to 15 8 to 10 3 to 4 15 to 20 10 to 15 8 to 10 3 to 4 15 to 20 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Electrical energy consumed by a jaw crusher is not a function of the None of these Average product size Average feed size Machine capacity None of these Average product size Average feed size Machine capacity ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a mixer, the quantity, (v. L/D) is termed as __________ number(where, v = longitudinal velocity of material, L = length of the mixer, D = diffusivity in axial mixing). Schmidt Weber Peclet Brinkman Schmidt Weber Peclet Brinkman ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The ratio of the actual mesh dimension of Taylor series to that of the next smaller screen is √3 2 √2 1.5 √3 2 √2 1.5 ANSWER DOWNLOAD EXAMIANS APP
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