Mechanical Operations Which of the following achieves the least reduction ratio for a given feed size? Jaw crusher Cone crusher Gyratory crusher Roll crusher Jaw crusher Cone crusher Gyratory crusher Roll crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following oxides is not present in hematite iron ore? Calcium oxide Cobalt oxide Titanium oxide Manganese oxide Calcium oxide Cobalt oxide Titanium oxide Manganese oxide 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'? Bucket conveyor Both B and C Flight conveyor Screw conveyor Bucket conveyor Both B and C Flight conveyor Screw conveyor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For transporting pasty material, one will use a/an Screw colaveyor Belt conveyor Bucket elevator Apron conveyor Screw colaveyor Belt conveyor Bucket elevator Apron conveyor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations With increase in the capacity of screens, the screen effectiveness Remains unchanged Decreases exponentially Decreases Increases Remains unchanged Decreases exponentially Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Dust collection efficiency of electrostatic precipitator can be as high as 99.9%. Maximum temperature and pressure of dust laden gas that can be cleaned in an electrostatic precipitator is respectively. 200°C and 5 atm 1000°C and 10 atm 1000°C and 500 atm 500°C and 50 atm 200°C and 5 atm 1000°C and 10 atm 1000°C and 500 atm 500°C and 50 atm ANSWER DOWNLOAD EXAMIANS APP
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