Mechanical Operations Sphericity of a cubical particle, when its equivalent diameter is taken as the height of the cube, is √3 1 0.5 √2 √3 1 0.5 √2 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a continuous filter? Plate and frame filter None of these Shell and leaf filter Cartridge filter Plate and frame filter None of these Shell and leaf filter Cartridge filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a size reduction crushing operation, the feed size is 10 to 50 mm, while the product size is 2 to 10 mm. This is a case of __________ crushing. Primary Ultrafine Fine Secondary Primary Ultrafine Fine Secondary ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific surface of spherical particles is given by (where D and ρ are diameter and density of particle). 2/D.p 4/D.p 6/D.p 12/D.p 2/D.p 4/D.p 6/D.p 12/D.p ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The energy required per unit mass to grind limestone particles of very large size to 100 μm is 12.7 kWh/ton. An estimate (using Bond's law) of the energy to grind the particles from a very large size to 50 μrn is 9.0 kWh/ton 6.35 kWh/ton 18 kWh/ton 25.4 kWh/ton 9.0 kWh/ton 6.35 kWh/ton 18 kWh/ton 25.4 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Additives used for promoting the floccula-tion of particles is a/an Surface active agent Both A & B Electrolyte Neither A nor B Surface active agent Both A & B Electrolyte Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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