Mechanical Operations Which of the following oxides is not present in hematite iron ore? Manganese oxide Cobalt oxide Titanium oxide Calcium oxide Manganese oxide Cobalt oxide Titanium oxide Calcium oxide ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Width and speed of a conveyor belt depends upon the __________ of the material. Neither A nor B Lump size Bulk density Both A & B Neither A nor B Lump size Bulk density Both A & B ANSWER DOWNLOAD EXAMIANS APP
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. Primary Fine Secondary Ultrafine Primary Fine Secondary Ultrafine 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 All of these American standard screens (ASTM and Tyler standard screens) German standard screens (DIN 1171) etc British standard screens All of these American standard screens (ASTM and Tyler standard screens) German standard screens (DIN 1171) etc British standard screens ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Use of grinding aids results in the Both A & B Finer products Enhanced production rate Neither A nor B Both A & B Finer products Enhanced production rate Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Work index is the gross energy (kWh/tonne of feed) necessary to reduce a very large feed to such a size that 80% of product particles will pass through a 0.1 mm screen. The value of work index determined for wet grinding should be multiplied with __________ to get the same for dry grinding. 0.5 1 4.34 1.34 0.5 1 4.34 1.34 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS