Mechanical Operations Colloid mills achieve size reduction mainly by Impact Cutting Attrition Compression Impact Cutting Attrition Compression ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a turbine agitated and baffled tank, operating at low Reynold's number (based on impeller diameter), the power number (Np) varies with NRe as Np → constant Np ∝ NRe Np ∝ 1/NRe Np ∝ √NRe Np → constant Np ∝ NRe Np ∝ 1/NRe Np ∝ √NRe ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The optimum moisture content in solids to be crushed/ground ranges from __________ percent. 3 to 4 8 to 10 10 to 15 15 to 20 3 to 4 8 to 10 10 to 15 15 to 20 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Additives used for promoting the floccula-tion of particles is a/an Surface active agent Both A & B Neither A nor B Electrolyte Surface active agent Both A & B Neither A nor B Electrolyte ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a hammer crusher, Crushing takes place by impact breaking Reduction ratio can be varied by adjusting the distance from cage to hammers Maximum acceptable feed size is 30 cms All of these Crushing takes place by impact breaking Reduction ratio can be varied by adjusting the distance from cage to hammers Maximum acceptable feed size is 30 cms All of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For removal of very small amounts of precipitate from large volume of water, the most suitable filter is the __________ filter. Shell & leaf Rotary vacuum Plate & frame Sand Shell & leaf Rotary vacuum Plate & frame Sand ANSWER DOWNLOAD EXAMIANS APP
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