Mass Transfer Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant. Bubble cap column Packed tower Sieve tray column Agitated vessel Bubble cap column Packed tower Sieve tray column Agitated vessel ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer. More than Same as Very much less Less than More than Same as Very much less Less than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Absorption factor is defined as (where, S₁ = slope of the operating line S₂ = slope of the equilibrium curve) S₁/S₂ S₂/S₁ S₁ - S₂ S₁ x S₂ S₁/S₂ S₂/S₁ S₁ - S₂ S₁ x S₂ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, Kc & Km are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving force. and, Kp = M.T.C. for diffusion of a gas through a stagnant inert gas with pressure as driving force.) Kc = Kp = Km Kc = Kp/RT = Km . RT/P None of these Kc = Kp . RT = Km . RT/p Kc = Kp = Km Kc = Kp/RT = Km . RT/P None of these Kc = Kp . RT = Km . RT/p ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the amount of the steam used in steam distillation is increased, the temperature of distillation Increases Decreases Depends on relative volatility Remains unchanged Increases Decreases Depends on relative volatility Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state, The top and bottom compositions are unchanged with and without total reflux The top and bottom compositions correspond to the maximum enrichment available Composition of vapors and that of liquid do not vary throughout the column Reboiler load and condenser load are minimum The top and bottom compositions are unchanged with and without total reflux The top and bottom compositions correspond to the maximum enrichment available Composition of vapors and that of liquid do not vary throughout the column Reboiler load and condenser load are minimum ANSWER DOWNLOAD EXAMIANS APP
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