Mechanical Operations For Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns. 500 5 50 5000 500 5 50 5000 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. 500°C and 50 atm 1000°C and 500 atm 200°C and 5 atm 1000°C and 10 atm 500°C and 50 atm 1000°C and 500 atm 200°C and 5 atm 1000°C and 10 atm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ baffles are provided in ball mills. None of these No Only two Horizontal None of these No Only two Horizontal ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Percentage of drum submerged in the slurry in case of rotary drum filter is 25 30 85 3 25 30 85 3 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Rittinger's number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger's number of a material indicates its None of these Easier grindability High power consumption in grinding Poor grindability None of these Easier grindability High power consumption in grinding Poor grindability ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ are used for the separation of coarse particles from a slurry of fine particles. Classifiers Hydrocyclones Decanters Thickeners Classifiers Hydrocyclones Decanters Thickeners ANSWER DOWNLOAD EXAMIANS APP
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