Mechanical Operations - Study Mode
[#321] If a force greater than that of gravity is used to separate solids & fluids of different densities, the process is termed as the
Correct Answer
(D) Centrifugation
[#322] The capacity of a classifier in 'tons of solid/hr' is given by (where, A = cross-sectional area, m 2 , V = rising velocity of fluid, m/sec, S = percentage of solids in the suspension by volume, ρ = density of solids, kg/m 3 )
Correct Answer
(A) 3.6 AVS.ρ
[#323] The specific surface of sherical particles is proportional to (where, D p = diameter of particle).
Correct Answer
(C) $$frac{1}{{{{ ext{D}}_{ ext{p}}}}}$$
[#324] Wet grinding in a revolving mill __________ as compared to dry grinding.
Correct Answer
(C) Increases capacity
[#325] Trommels employ __________ for screening of materials.
Correct Answer
(C) Punched plate