A. Sieve plate column
B. Bubble cap column
C. Randomly packed column
D. Wetted wall column
Related Mcqs:
- Which of the following gas-liquid contacting devices incurs the least pressure drop for a particular duty ?
A. Grid tray tower
B. Perforated tray tower
C. Wetted wall tower
D. Bubble cap tower - 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?
A. Less than
B. More than
C. Same as
D. Very much less - Out of the following gas-liquid contacting devices, for a given set of operating conditions, gas pressure drop is the least in ______________ tower?
A. Wetted wall
B. Bubble cap
C. Perforated tray
D. Packed - Which of the following provides maximum contact surface for a liquid-vapour system ?
A. Packed tower
B. Bubble-cap plate column
C. Sieve-plate column
D. Wetted wall column - In a vapor-liquid contacting equipment, the overall gas phase mass transfer co-efficient (M.T.C), KG is related to individual co-efficients (KG and KL) as ___________________ ?
A. KG = 1/KG + m/KL
B. 1/KG = 1/KG + m/KL
C. 1/KG = 1/KL + m/KG
D. KG = 1/KL + m/KG - The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same system is_______________________?
A. 100
B. 10
C. 5
D. 1 - _____________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid ?
A. Dew point
B. Bubble point
C. Dry bulb temperature
D. Wet bulb temperature - For contacting a highly soluble gas with a liquid ____________________?
A. Bubble the gas through liquid
B. Spray the liquid on gas stream
C. Either A. or B. would suffice
D. None of these - Bound moisture is that liquid which exerts an equilibrium vapor pressure ________________ that of the pure liquid at the given temperature ?
A. Less than
B. More than
C. Equal to
D. Either A. or B.; depends on the solid - In a liquid-liquid extraction, 10 kg of a solution containing 2 kg of solute C and 8 kg of solvent A is brought into contact with 10 kg of solvent B. Solvent A and B are completely immiscible in each other whereas solute C is soluble in both the solvents. The extraction process attains equilibrium. The equilibrium relationship between the two phases is Y* = 0.9X, where Y* is the kg of C/kg of B and X is kg of C/kg of A. Choose the correct answer?
A. The entire amount of C is transferred to solvent B
B. Less than 2 kg but more than 1 kg of C is transferred to solvent B
C. Less than 1 kg of C is transferred to B
D. No amount of C is transferred to B
