Mechanical Operations Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the Cage mill Bradford's breaker Stamp mill Blake jaw crusher Cage mill Bradford's breaker Stamp mill Blake jaw crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Close circuit grinding by a ball mill with air sweeping employs a Both A & B Cyclone separator between mill & classifier Classifier Neither A nor B Both A & B Cyclone separator between mill & classifier Classifier Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gravity settling process is not involved in the working of a Dorr-thickener Hydrocyclone Classifier Sedimentation tank Dorr-thickener Hydrocyclone Classifier Sedimentation tank ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The opening of a 200 mesh screen (Taylor series) is 0.0074 mm 0.0074 cm 74 mili-microns 0.0047 cm 0.0074 mm 0.0074 cm 74 mili-microns 0.0047 cm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The constants (Kb, Kr and Kk) used in the laws of crushing (i.e., Bond's law, Rittinger's law and Kick's law) depend upon the Feed material Both A & B Neither A nor B Type of crushing machine Feed material Both A & B Neither A nor B Type of crushing machine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripherial velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m³ here, V =πN.D where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m) 3.6 W.Dr.ρ 3.6 V.W. ρ 3.6 V.W.Dr/ρ 3.6 V.W.Dr.ρ 3.6 W.Dr.ρ 3.6 V.W. ρ 3.6 V.W.Dr/ρ 3.6 V.W.Dr.ρ ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS