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 Cyclone separator Bag filter Wet scrubber Electrostatic precipitator Cyclone separator Bag filter Wet scrubber Electrostatic precipitator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Apron conveyors are used for Heavy loads & short runs None of these Small loads & long runs Heavy loads & long runs Heavy loads & short runs None of these Small loads & long runs Heavy loads & long runs ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The grinding in a hammer crusher takes place due to the Neither A nor B Both A & B Attrition Impact Neither A nor B Both A & B Attrition Impact ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the Size Volatile matter content Density separation Differential wettability Size Volatile matter content Density separation Differential wettability ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is 230 1125 460 2250 230 1125 460 2250 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called Sedimentation Classification Decantation Clarification Sedimentation Classification Decantation Clarification ANSWER DOWNLOAD EXAMIANS APP