Mechanical Operations With increase in the capacity of screens, the screen effectiveness Increases Decreases exponentially Remains unchanged Decreases Increases Decreases exponentially Remains unchanged Decreases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not a wet classifier? Sharpies supercentrifuge Dorr Oliver rake classifier Hydrocyclones None of these Sharpies supercentrifuge Dorr Oliver rake classifier Hydrocyclones None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For grinding of cereals, grains, spices, pigments, saw dust, cork etc., the most extensively used size reduction equipment is a Buhrstone mill Crushing rolls Hammer mill Ball mill Buhrstone mill Crushing rolls Hammer mill Ball mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Height of liquid in agitation tank is normally maintained equal to the tank diameter. However, if the tank is too tall and a large liquid hold up is desired, then two or more impellers mounted on the same shaft may be used. The clearance between the tank bottom and the bottom most impeller should be about (where, D = impeller diameter) D 0.5 D 2 D 1.5 D D 0.5 D 2 D 1.5 D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity of a cubical particle, when its equivalent diameter is taken as the height of the cube, is 1 √2 0.5 √3 1 √2 0.5 √3 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Rittinger's crushing law states that Work required in crushing is proportional to the new surface created Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product For a given machine and feed, crushing efficiency is dependent on the size of the feed & product Work required in crushing is proportional to the new surface created Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product For a given machine and feed, crushing efficiency is dependent on the size of the feed & product ANSWER DOWNLOAD EXAMIANS APP
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