Mechanical Operations Which of the following oxides is not present in hematite iron ore? Titanium oxide Calcium oxide Manganese oxide Cobalt oxide Titanium oxide Calcium oxide Manganese oxide Cobalt oxide ANSWER DOWNLOAD EXAMIANS APP
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 Stainless steel Concrete Flint or porcelain Bronze Stainless steel Concrete Flint or porcelain Bronze ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following crushing laws is most accurately applicable to the fine grinding of materials ? Kick's law Bond's crushing law None of these Rittinger's law Kick's law Bond's crushing law None of these Rittinger's law ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the __________ filter. Rotary Vacuum Plate & frame Sand Rotary Vacuum Plate & frame Sand ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for German standard screens (DIN 1171) etc All of these American standard screens (ASTM and Tyler standard screens) British standard screens German standard screens (DIN 1171) etc All of these American standard screens (ASTM and Tyler standard screens) British standard screens ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The equivalent diameter of channel of a constant non-circular cross-section of 3 cm by 6 cm will be __________ cms. 8 2 20 12 8 2 20 12 ANSWER DOWNLOAD EXAMIANS APP
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