Mechanical Operations Pick out the wrong statement pertaining to the roll crushers. 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 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 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter medium resistance is important during the __________ of filtration. Final stages Early stages None of these Entire process Final stages Early stages None of these Entire process ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following mineral dressing operations is termed as 'comminution'? Tabling Spiralling None of these Panning Tabling Spiralling None of these Panning ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Mechanical conveyors which push the material along an endless trough or tube are called scrappers. Which of the following conveying equipments comes under the category of 'scrappers'? Both B and C Screw conveyor Bucket conveyor Flight conveyor Both B and C Screw conveyor Bucket conveyor Flight conveyor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A tube mill as compared to a ball mill Has larger length/diameter ratio (>2 as compared to 1 for ball mill) Employs smaller balls All of these Gives finer size reduction but consumes more power Has larger length/diameter ratio (>2 as compared to 1 for ball mill) Employs smaller balls All of these Gives finer size reduction but consumes more power ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which is a secondary crusher for a hard & tough stone? Jaw crusher Toothed roll crusher Impact crusher Cone crusher Jaw crusher Toothed roll crusher Impact crusher Cone crusher ANSWER DOWNLOAD EXAMIANS APP
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