Mechanical Operations The specific surface of sherical particles is proportional to (where, Dp = diameter of particle). 1/Dp D²p Dp 1/D²p 1/Dp D²p Dp 1/D²p ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity of raschig ring (whose length and diameter are equal) is 1 >1 2 1 >1 2 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 Clarification Decantation Sedimentation Classification Clarification Decantation Sedimentation Classification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a revolving mill, wet grinding compared to dry grinding Has less capacity Complicates handling & classification of the product Requires more energy None of these Has less capacity Complicates handling & classification of the product Requires more energy None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In screen analysis, the notation +5 mm/-10 mm means particles passing through 5 mm screen and retained on 10 mm screen Both 5 mm and 10 mm screens 10 mm screen and retained on 5 mm screen Neither 5 mm nor 10 mm screen 5 mm screen and retained on 10 mm screen Both 5 mm and 10 mm screens 10 mm screen and retained on 5 mm screen Neither 5 mm nor 10 mm screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not used as a filter medium in case of corrosive liquids? Metal cloth of monel or stainless steel Glass cloth Nylon Cotton fabric Metal cloth of monel or stainless steel Glass cloth Nylon Cotton fabric ANSWER DOWNLOAD EXAMIANS APP