Mechanical Operations Vacuum is applied in __________ zone, in case of a general type continuous rotary drum vacuum filter. Washing Drying All of these Filtering Washing Drying All of these Filtering ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For crushing of solids, the Rittinger's law states that the work required for crushing is proportional to The size reduction ratio The change in volume due to crushing None of these The new surface created The size reduction ratio The change in volume due to crushing None of these The new surface created ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator? Calcium carbonate Cresylic acid Sodium carbonate Copper sulphate Calcium carbonate Cresylic acid Sodium carbonate Copper sulphate ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a non-spherical particle, the sphericity Is always less than 1 Has the dimension of length Is the ratio of volume of a sphere having the same surface area as the particle to the actual volume of the particle Is defined as the ratio of surface area of a sphere having the same volume as the particle to the actual surface area of the particle Is always less than 1 Has the dimension of length Is the ratio of volume of a sphere having the same surface area as the particle to the actual volume of the particle Is defined as the ratio of surface area of a sphere having the same volume as the particle to the actual surface area of the particle ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size reduction of the __________ can be suitably done by ball mills, crushing rolls and rod mills. Metalliferrous ores Basic slags Asbestos & mica Non-metallic ores Metalliferrous ores Basic slags Asbestos & mica Non-metallic ores ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The controlling resistance in a rotary drum vacuum filter is the __________ resistance. Filter medium None of these Cake Piping Filter medium None of these Cake Piping ANSWER DOWNLOAD EXAMIANS APP
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