Concentration of liquid and vapour leaving a plate will be same
Reflux ratio will be maximum
Number of plates required will be maximum
None of these
✅ The correct answer is option C.
Chemical Engineering MCQs
For contacting a highly soluble gas with a liquid
Bubble the gas through liquid
Spray the liquid on gas stream
Either A or B would suffice
None of these
✅ The correct answer is option A.
At constant pressure, with increase of temperature, the dew point will
Increase
Decrease
Remain unchanged
Increase/decrease ; depends on the temperature
✅ The correct answer is option A.
Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation.
Molecular
Extractive
Steam
Simple
✅ The correct answer is option D.
In Mcabe-Thiele method, at infinite reflux ratio
Number of plates is maximum
Overhead product is maximum
Both the operating lines coincide with the diagram
None of these
✅ The correct answer is option C.
In case of gases, the binary diffusivity is proportional to (where, P = pressure)
P
1/P
1/√P
√P
✅ The correct answer is option B.
Drying operation under vacuum is carried out to
Dry those materials which have very high unbound mositure content
Reduce drying temperature
Increase drying temperature
Dry materials having high bound moisture content
✅ The correct answer is option B.
Which of the following unit operations makes use of Thiele-Geddes equation?
Liquid-liquid extraction
Solid-liquid extraction
Multicomponent absorption with chemical reaction
Multicomponent distillation
✅ The correct answer is option D.
In a packed bed absorption column, the channelling will be noted by the
Increase in flow rate
Sharp drop in pressure drop
Sharp rise in pressure drop
None of these
✅ The correct answer is option B.