Increases
Decreases
Remains unchanged
Decreases exponentially
✅ The correct answer is option A.
Chemical Engineering MCQs
Antibiotics are best handled in a
Podbielniak extractor
Sieve tray contractor
Rotating disc contactor
Pulsed column extractor
✅ The correct answer is option A.
If a₁ and a₂ are the relative volatilities when the pressure in the distillation column is 1 and 2 atm respectively. Pick out the correct statement.
a₁ = a₂
a₁ = 2a₂
a₁ = 0.5 a₂
None of these
✅ The correct answer is option D.
At 750°K and 1 atm, the approximate value of Schmidt number for air is
0.01
0.1
1
10
✅ The correct answer is option B.
Which of the following is not a continuous leaching equipment?
Pachuka tank
Kennedy extractor
Bollman extractor
Hydrocyclones
✅ The correct answer is option A.
__________ column is used in gas absorption process.
Wetted wall
Seive/perforated tray
Bubble cap
Packed
✅ The correct answer is option D.
On addition of solute in the solvent, the __________ of the solution decreases.
Boiling point
Freezing point
Vapour pressure
Both B and C
✅ The correct answer is option D.
Plate efficiency in a distillation column is reduced due to the __________ of liquid.
Entrainment
Foaming
Weeping & dumping
All of the above
✅ The correct answer is option D.
In which of the following unit operations, the selectivity is an important parameter?
Distillation
Solvent extraction
Absorption
None of these
✅ The correct answer is option B.
Which of the following adsorbant is used in the refinning of sugar?
Bone charcoal
Wood charcoal
Silica gel
Activated clay
✅ The correct answer is option A.