Mechanical Operations Which of the following oxides is not present in hematite iron ore? Manganese oxide Calcium oxide Titanium oxide Cobalt oxide Manganese oxide Calcium oxide Titanium oxide Cobalt oxide ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ball mill is used for Coarse grinding Attrition Fine grinding Crushing Coarse grinding Attrition Fine grinding Crushing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Temperature of the product during ultrafine grinding Increases Remains constant Decreases May increase or decrease ; depends on the material being ground Increases Remains constant Decreases May increase or decrease ; depends on the material being ground ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For sizing of fine materials, the most suitable equipment is a Vibrating screen Trommel Grizzly Shaking screen Vibrating screen Trommel Grizzly Shaking screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2/μ: Reynold's number N is the impeller rotational speed, and D is the impeller diameter. Po ∝ Re-1.0 Po ∝ Re0.5 Po ∝ Re0.0 Po ∝ Re1.0 Po ∝ Re-1.0 Po ∝ Re0.5 Po ∝ Re0.0 Po ∝ Re1.0 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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