Mechanical Operations For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter) AD/V None of these π/6(=V/D³) π(=A/D²) AD/V None of these π/6(=V/D³) π(=A/D²) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of materials into products based on the difference of their sizes is called Sizing Classification Flocculation Sorting Sizing Classification Flocculation Sorting ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2/μ: Reynold's number N is the impeller rotational speed, and D is the impeller diameter. Po ∝ Re1.0 Po ∝ Re0.5 Po ∝ Re0.0 Po ∝ Re-1.0 Po ∝ Re1.0 Po ∝ Re0.5 Po ∝ Re0.0 Po ∝ Re-1.0 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A tube mill compared to a ball mill Uses much larger balls Has a higher diameter/length ratio Has a higher length/diameter ratio Produces a coarser product Uses much larger balls Has a higher diameter/length ratio Has a higher length/diameter ratio Produces a coarser product ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns. 5 50 500 5000 5 50 500 5000 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations 200 mesh seive size corresponds to __________ microns. 200 74 154 24 200 74 154 24 ANSWER DOWNLOAD EXAMIANS APP
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