Mechanical Operations In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing. Secondary Ultrafine Primary Fine Secondary Ultrafine Primary Fine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Power consumption during turbulent flow in agitation tank is proportional to the __________ of the liquid. Surface tension Viscosity Thermal conductivity Density Surface tension Viscosity Thermal conductivity Density ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The process by which fine solids is removed from liquids is termed as Decantation Flocculation Sedimentation Classification Decantation Flocculation Sedimentation Classification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to increase the porosity of the final filter cake & reducing the cake resistance during filtration. Filter aid is Added to the feed slurry Separated from the cake by dissolving solids or by burning it off Precoated on the filter medium prior to filtration All of these Added to the feed slurry Separated from the cake by dissolving solids or by burning it off Precoated on the filter medium prior to filtration All of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals. Separation efficiency Concentration ratio Selectivity index None of these Separation efficiency Concentration ratio Selectivity index None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are Silicates & phosphates Carbonates Sulphates Bi-carbonates Silicates & phosphates Carbonates Sulphates Bi-carbonates ANSWER DOWNLOAD EXAMIANS APP
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