Mechanical Operations Pebble mills are tumbling mills widely used for grinding in the manufacture of paints & pigments and cosmetic industries, where iron contamination in the product is highly objectionable. Pebbles used in pebble mill are made of Concrete Stainless steel Flint or porcelain Bronze Concrete Stainless steel Flint or porcelain Bronze ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity of a cubical particle, when its equivalent diameter is taken as the height of the cube, is 0.5 √3 √2 1 0.5 √3 √2 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The ratio of the actual mesh dimension of Taylor series to that of the next smaller screen is 2 1.5 √2 √3 2 1.5 √2 √3 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Xanthates are used in the froth floatation process as a/an Conditioner Collector Activator Frother Conditioner Collector Activator Frother ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Toothed roll crushers achieve size reduction by Both A & B Impact and attrition Neither A nor B Tearing (shear) and compression Both A & B Impact and attrition Neither A nor B Tearing (shear) and compression ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The porosity of a compressible cake is Minimum at the filter medium Minimum at the upstream face Same throughout the thickness of cake Maximum at the filter medium Minimum at the filter medium Minimum at the upstream face Same throughout the thickness of cake Maximum at the filter medium ANSWER DOWNLOAD EXAMIANS APP
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