Mechanical Operations What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls? 0.66 1 0.5 2.76 0.66 1 0.5 2.76 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Chance process is used for the Water treatment Concentration of pyrites Concentration of iron ore Cleaning of coal Water treatment Concentration of pyrites Concentration of iron ore Cleaning of coal 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 American standard screens (ASTM and Tyler standard screens) British standard screens All of these German standard screens (DIN 1171) etc American standard screens (ASTM and Tyler standard screens) British standard screens All of these German standard screens (DIN 1171) etc ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a hammer crusher, Crushing takes place by impact breaking All of these Reduction ratio can be varied by adjusting the distance from cage to hammers Maximum acceptable feed size is 30 cms Crushing takes place by impact breaking All of these Reduction ratio can be varied by adjusting the distance from cage to hammers Maximum acceptable feed size is 30 cms ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Additives used for promoting the floccula-tion of particles is a/an Both A & B Electrolyte Neither A nor B Surface active agent Both A & B Electrolyte Neither A nor B Surface active agent ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Two particles are called to be equal settling, if they are having the same. Specific gravity Size None of these Terminal velocities in the same fluid & in the same field of force Specific gravity Size None of these Terminal velocities in the same fluid & in the same field of force ANSWER DOWNLOAD EXAMIANS APP
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