Mechanical Operations Trommels employ __________ for screening of materials. Fibrous cloth None of these Punched plate Woven wire screen Fibrous cloth None of these Punched plate Woven wire screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations What is the selectivity index, if the grade of tailings & concentrate is the same? 0.5 1 ∞ 0.5 1 ∞ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations With increase in the capacity of screens, the screen effectiveness Increases Remains unchanged Decreases Decreases exponentially Increases Remains unchanged Decreases Decreases exponentially ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is the most suitable for handling fibrous and dense slurries? Turbine agitator Propeller agitator Radial propeller agitator Cone type agitator Turbine agitator Propeller agitator Radial propeller agitator Cone type agitator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pick out the wrong statement pertaining to the roll crushers. Maximum feed size determines the required roll diameter For hard material's crushing, the reduction ratio should not exceed 4 Both the rolls run necessarily at the same speed Reduction ratio and differential roll speed affect production rate & energy consumed per unit of surface produced Maximum feed size determines the required roll diameter For hard material's crushing, the reduction ratio should not exceed 4 Both the rolls run necessarily at the same speed Reduction ratio and differential roll speed affect production rate & energy consumed per unit of surface produced ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration should be stopped in a filter press, if the Both A & B Filtration pressure rises suddenly Liquor stops flowing out to the discharge Cake becomes very dense Both A & B Filtration pressure rises suddenly Liquor stops flowing out to the discharge Cake becomes very dense ANSWER DOWNLOAD EXAMIANS APP
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