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 Flight conveyor Bucket conveyor Both B and C Screw conveyor Flight conveyor Bucket conveyor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the Heavy tonnages of rocks or gravel Dry chemicals Light metal powder down upto 4 meshsize Powdered food & granular materials Heavy tonnages of rocks or gravel Dry chemicals Light metal powder down upto 4 meshsize Powdered food & granular materials ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ball mills and tube mills with flint or porcelain balls are used for size reduction of Limestone Asbestos Rubber Non-metallic ores Limestone Asbestos Rubber Non-metallic ores ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most suitable equipment for removing the fine dust particle (< 1 micron dia.) from air below its dew point will be a/an Bag filter Cyclone separator Electrostatic precipitator Wet scrubber Bag filter Cyclone separator Electrostatic precipitator Wet scrubber ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following screens has the maximum capacity? Vibrating screen Trommels Shaking screen Grizzlies Vibrating screen Trommels Shaking screen Grizzlies 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
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