Mechanical Operations Close circuit grinding by a ball mill with air sweeping employs a Cyclone separator between mill & classifier Neither A nor B Classifier Both A & B Cyclone separator between mill & classifier Neither A nor B Classifier Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals. Separation efficiency Concentration ratio Selectivity index None of these Separation efficiency Concentration ratio Selectivity index None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Molten ammonium nitrate is mixed with ground limestone in fertilizer plant in a Banbury mixer Pug mill Muller mixer Mixer-extruder Banbury mixer Pug mill Muller mixer Mixer-extruder ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is 460 2250 230 1125 460 2250 230 1125 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The reduction ratio for fine grinders is 43961 44124 20-40 As high as 100 43961 44124 20-40 As high as 100 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles) Vp/m . ρ M/ρ . Vp M . Vp/ρ M . ρ/Vp Vp/m . ρ M/ρ . Vp M . Vp/ρ M . ρ/Vp ANSWER DOWNLOAD EXAMIANS APP
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