Psychrometric ratio
Lewis number
Sherwood number
Stantan number
✅ The correct answer is option B.
Chemical Engineering MCQs
Ammonia present in the coke oven gas is removed by washing with
Caustic solution
Dilute ammoniacal liquor
Dilute HCl
Ethanolamine
✅ The correct answer is option B.
Bollman extractor
Is a static bed leaching equipment
Is used for extraction of oil from oilseed
Is a centrifugal extractor
Employs only counter-current extraction
✅ The correct answer is option B.
Small dia distillation column can be a
Packed column
Sieve tray
Bubble cap
Any of these
✅ The correct answer is option A.
McCabe-Thiele method of binary distillation does not assume that the
Sensible heat changes are negligible compared with latent heat changes
Molar latent heats of all components are equal
Heat of mixing is negligible
None of these
✅ The correct answer is option D.
Use of packed towers for distillation is generally limited to the
Small sizes
Multicomponent distillation
High pressure operation
Vacuum distillation
✅ The correct answer is option A.
Pick out the system with maximum boiling azeotrope at 1 atm.
Acetone chloroform
Ethyl alcohol-water
Benzene-ethyl alcohol
None of these
✅ The correct answer is option A.
Mass transfer co-efficient is directly proportional to DAB0.5, according to __________ theory.
Penetration
Surface renewal
Film
None of these
✅ The correct answer is option A.
In azeotropic mixture, the equilibrium vapour composition is
More than liquid composition
Less than liquid composition
Same as liquid composition
Independent of pressure
✅ The correct answer is option C.
Dorr thickener is an equipment used for
Classification
Sedimentation
Clarification
Leaching
✅ The correct answer is option B.