Mechanical Operations Production rate __________ with increased fineness, with a given energy input to the size reduction machine. Decreases Increases Remains unchanged May increase or decrease; depends on the machine Decreases Increases Remains unchanged May increase or decrease; depends on the machine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake) Independent of ΔP ∝ 1/ ΔP ∝ ΔP ∝ √ΔP Independent of ΔP ∝ 1/ ΔP ∝ ΔP ∝ √ΔP ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Grinding characteristic of a material is given by its Shatter index HGI Abrasion index Angle of repose Shatter index HGI Abrasion index Angle of repose ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations There is practically no alternative/competitor to __________ in the beneficiation treatment of sulphide ores. Classification Jigging Froth floatation Tabling Classification Jigging Froth floatation Tabling ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the __________ crushing. Fine Secondary Ultrafine Primary Fine Secondary Ultrafine Primary ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ball mill is used for Coarse grinding Crushing Attrition Fine grinding Coarse grinding Crushing Attrition Fine grinding ANSWER DOWNLOAD EXAMIANS APP
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