Mechanical Operations For efficient grinding, ball mills must be operated At a speed more than the critical speed With minimum possible small balls At a speed less than the critical speed At a speed equal to the critical speed At a speed more than the critical speed With minimum possible small balls At a speed less than the critical speed At a speed equal to the critical speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Wheat is ground into flour in a Fluid energy mill Hammer crusher Impact mill Roller crusher Fluid energy mill Hammer crusher Impact mill Roller crusher 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. 500 5 50 5000 500 5 50 5000 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Colloidal mills are used for __________ grinding. Intermediate Ultrafine Fine Coarse Intermediate Ultrafine Fine Coarse ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake) ∝ √ΔP ∝ 1/ ΔP Independent of ΔP ∝ ΔP ∝ √ΔP ∝ 1/ ΔP Independent of ΔP ∝ ΔP ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A filter press is Not suitable for wide range of materials under varying operating conditions of cake thickness and pressure A batch filter Having prohibitively high maintenance cost Not suitable, if the liquid is the main product Not suitable for wide range of materials under varying operating conditions of cake thickness and pressure A batch filter Having prohibitively high maintenance cost Not suitable, if the liquid is the main product ANSWER DOWNLOAD EXAMIANS APP
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