Mechanical Operations In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced. Tailing Concentrate None of these Middling Tailing Concentrate None of these Middling ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Chance process is used for the Concentration of iron ore Water treatment Concentration of pyrites Cleaning of coal Concentration of iron ore Water treatment Concentration of pyrites Cleaning of coal ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a non-spherical particle, the sphericity Has the dimension of length Is always less than 1 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 the ratio of volume of a sphere having the same surface area as the particle to the actual volume of the particle Has the dimension of length Is always less than 1 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 the ratio of volume of a sphere having the same surface area as the particle to the actual volume of the particle ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is the most suitable filter for separation of abrasive solids suspended in a corrosive liquid? Plate and frame filter press Batch basket centrifuge Vacuum filter Sand bed filter Plate and frame filter press Batch basket centrifuge Vacuum filter Sand bed filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a hammer crusher, the final product size depends on the Clearance between hammer & grinding plates Rotor speed Feed rate All of these Clearance between hammer & grinding plates Rotor speed Feed rate All of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size ) 1/s . c S/c S . c C/s 1/s . c S/c S . c C/s ANSWER DOWNLOAD EXAMIANS APP
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