Size reduction of the __________ can be suitably done by ball mills, crushing rolls and rod mills. Metalliferrous ores Asbestos & mica Non-metallic ores Basic slags TRUE ANSWER : ? YOUR ANSWER : ?
All resistances during washing of cake Remain constant Increases Decreases None of these TRUE ANSWER : ? YOUR ANSWER : ?
__________ are mixed using ribbon blenders. Dry powders Thick pastes High viscosity liquids Lumpy solids and low viscosity liquids TRUE ANSWER : ? YOUR ANSWER : ?
Mesh indicates the number of holes per Square inch Linear foot Linear inch Square foot TRUE ANSWER : ? YOUR ANSWER : ?
Ultrafine grinders operate principally by Impact Cutting action Slow compression Attrition TRUE ANSWER : ? YOUR ANSWER : ?
Solid particles separation based on the difference in their flow velocities through fluids is termed as the Elutriation Clarification Sedimentation Classification TRUE ANSWER : ? YOUR ANSWER : ?
Trommels are revolving screens which normally operate in the range of __________ rpm. 60 - 75 43832 40 - 50 15 - 20 TRUE ANSWER : ? YOUR ANSWER : ?
Close circuit grinding by a ball mill with air sweeping employs a Both A & B Cyclone separator between mill & classifier Neither A nor B Classifier TRUE ANSWER : ? YOUR ANSWER : ?
Cumulative analysis for determining surface is more precise than differential analysis, because of the None of these Assumption that all particles in a single fraction are equal in size, is not needed Assumption that all particles in a single fraction are equal in size Fact that screening is more effective TRUE ANSWER : ? YOUR ANSWER : ?
The controlling resistance in a rotary drum vacuum filter is the __________ resistance. Filter medium Cake Piping None of these TRUE ANSWER : ? YOUR ANSWER : ?