Mass Transfer

Question: Boiling point diagram is not affected by the ambient
[A].

pressure

[B].

humidity

[C].

temperature

[D].

both (b) and (c)

Answer: Option D

Explanation:

No answer description available for this question.

Question: Large scale drying of wheat is done in a __________ dryer.
[A].

fluidised bed

[B].

spouted bed

[C].

tray

[D].

vacuum rotary

Answer: Option B

Explanation:

No answer description available for this question.

Question: Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant.
[A].

agitated vessel

[B].

sieve tray column

[C].

bubble cap column

[D].

packed tower

Answer: Option A

Explanation:

No answer description available for this question.

Question: ‘ADDUCTS’ and ‘CLATHRATES’ are used in case of
[A].

extractive distillation.

[B].

crystallisation.

[C].

absorption.

[D].

none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Boiling point diagram is
[A].

not affected by pressure.

[B].

affected by pressure.

[C].

a plot of temperature vs. liquid composition.

[D].

a plot of temperature vs. vapour composition.

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ is used as an ‘entrainer’ for the separation of acetic acid-water mixture by distillation.
[A].

Furfural

[B].

Benzol

[C].

Butyl acetate

[D].

Hexane

Answer: Option C

Explanation:

No answer description available for this question.

Question: In distillation, overhead product contains
[A].

only one component

[B].

two components

[C].

any number of components

[D].

only saturated liquid

Answer: Option C

Explanation:

No answer description available for this question.

Question: A binary mixture of benzene and cyclohexane is separated by
[A].

flash vaporisation

[B].

extractive distillation

[C].

solvent extraction

[D].

ordinary distillation

Answer: Option B

Explanation:

No answer description available for this question.

Question: ‘Absorption with chemical reaction’ is involved in the removal of
[A].

carbon dioxide from gaseous stream using alkaline solution.

[B].

benzol from coke oven gas using solar oil/wash oil.

[C].

ammonia from coke oven gas using refrigerated water.

[D].

tar from coke oven gas in primary gas coolers using chilled water.

Answer: Option A

Explanation:

No answer description available for this question.

Question: Leaching of uranium ore and gold ore is done in
[A].

centrifugal extractor

[B].

Pachuka tanks

[C].

Bollman extractor

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.