Mechanical Operations Ultracentrifuges running at speeds upto 100000 rpm is normally used for the Separation of cream from milk Dewaxing of lubricating oil Separation of isotopes based on their density or molecular weights difference Concentration of rubber latex Separation of cream from milk Dewaxing of lubricating oil Separation of isotopes based on their density or molecular weights difference Concentration of rubber latex ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called Thickening Clarification Classification Froth floatation Thickening Clarification Classification Froth floatation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific cake resistance for incompressible sludges is (where ΔP = pressure drop over cake) ∝ 1/ ΔP Independent of ΔP ∝ ΔP ∝ √ΔP ∝ 1/ ΔP Independent of ΔP ∝ ΔP ∝ √ΔP ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In screen analysis, the notation +5 mm/-10 mm means particles passing through 5 mm screen and retained on 10 mm screen 10 mm screen and retained on 5 mm screen Both 5 mm and 10 mm screens Neither 5 mm nor 10 mm screen 5 mm screen and retained on 10 mm screen 10 mm screen and retained on 5 mm screen Both 5 mm and 10 mm screens Neither 5 mm nor 10 mm screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of Either A, B or C Electromagnets Unblanced fly wheels Cams or eccentric shafts Either A, B or C Electromagnets Unblanced fly wheels Cams or eccentric shafts ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Maximum size reduction in a ball mill is done by the, __________ action. Compression Cutting Attrition Impact Compression Cutting Attrition Impact ANSWER DOWNLOAD EXAMIANS APP
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