Mechanical Operations Maximum size reduction in a fluid energy mill is achieved by Interparticle attrition Impact Compression Cutting Interparticle attrition Impact Compression Cutting ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Kick's law assumes that the energy required for size reduction is proportional to the logarithm of the ratio between the initial and the final diameters. The unit of Kick's constant is KWh/kg KWh/sec. kg Kg/sec KW. sec/kg KWh/kg KWh/sec. kg Kg/sec KW. sec/kg ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The capacity of a classifier in 'tons of solid/hr' is given by (where, A = cross-sectional area, m² V = rising velocity of fluid, m/sec.S = percentage of solids in the suspension by volume.ρ = density of solids, kg/m³) 3.6 A.V.ρ 3.6 AVS/ρ 3.6 AVS.ρ 3.6 A.S. ρ 3.6 A.V.ρ 3.6 AVS/ρ 3.6 AVS.ρ 3.6 A.S. ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Rittinger's number designates the new surface created per unit mechanical energy absorbed by the material being crushed. Larger value of Rittinger's number of a material indicates its Easier grindability High power consumption in grinding None of these Poor grindability Easier grindability High power consumption in grinding None of these Poor grindability ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A centrifugal filtration unit operating at a rotational speed of w has inner surface of the liquid (density ρL) located at a radial distance R from the axis of rotation. The thickness of the liquid film is δ and no cake is formed. The initial pressure drop during filtration is ½w² . δ² . ρL ½w² . δρL (2R + δ) ½w² . R² . ρL ½w² . R . ρL(R + 2δ) ½w² . δ² . ρL ½w² . δρL (2R + δ) ½w² . R² . ρL ½w² . R . ρL(R + 2δ) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The speed of a rotary drum vacuum filter may be about __________ rpm. 100 50 500 1 100 50 500 1 ANSWER DOWNLOAD EXAMIANS APP
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