Mechanical Operations Toothed roll crushers achieve size reduction by Both A & B Impact and attrition Tearing (shear) and compression Neither A nor B Both A & B Impact and attrition Tearing (shear) and compression Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a ball mill, the volume occupied by the balls (when the mill is stopped) is about __________ percent of the volume of the mill. 70 85 50 35 70 85 50 35 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The material is crushed in a gyratory crusher by the action of Cutting Impact Attrition Compression Cutting Impact Attrition Compression ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For the preliminary breaking of hard rock, we use a Gyratory crusher Ball mill Tube mill Squirrel-cage disintegrator Gyratory crusher Ball mill Tube mill Squirrel-cage disintegrator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size reduction of the __________ can be suitably done by ball mills, crushing rolls and rod mills. Non-metallic ores Basic slags Asbestos & mica Metalliferrous ores Non-metallic ores Basic slags Asbestos & mica Metalliferrous ores ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The value of work index does not change materially from one equipment to another. If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be 1.34 Wi 3.34 Wi Wi 0.5 Wi 1.34 Wi 3.34 Wi Wi 0.5 Wi ANSWER DOWNLOAD EXAMIANS APP
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