CHEMICAL ENGINEERING

Question: Liquefaction of gases can not be done by
[A].

exchange of heat with colder stream.

[B].

adiabatic expansion through a throttle valve (Joule-Thomson expansion).

[C].

merely compressing it beyond critical pressure.

[D].

adiabatic expansion against a piston or in a turbine.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Average sulphur content in Indian pyrites is about __________ percent.
[A].

15

[B].

35

[C].

55

[D].

70

Answer: Option B

Explanation:

No answer description available for this question.

Question: Fish contains about __________ percent oil.
[A].

5

[B].

10

[C].

20

[D].

35

Answer: Option C

Explanation:

No answer description available for this question.

Question: Finely ground calcium aluminate & silicate is a/an
[A].

cermet

[B].

cement

[C].

abrasive

[D].

explosive

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ acid is the main constituent of cotton seed oil.
[A].

Acetic

[B].

Linoleic

[C].

Palmitic

[D].

Oleic

Answer: Option B

Explanation:

No answer description available for this question.

Question: Chemical formula of ‘salt cake’ is
[A].

Na2SO4

[B].

CaSO4

[C].

MgSO4

[D].

BaSO4

Answer: Option A

Explanation:

No answer description available for this question.

Question: Paper grade bamboo contains about __________ percent cellulose.
[A].

5

[B].

20

[C].

40

[D].

60

Answer: Option A

Explanation:

No answer description available for this question.

Question: P.T.F.E. (Poly tetra fluoro ethylene) is commercially known as
[A].

bakelite

[B].

neoprene

[C].

teflon

[D].

nylon-66

Answer: Option C

Explanation:

No answer description available for this question.

Question: A unit operation is exemplified by the process of
[A].

reduction

[B].

desorption

[C].

nitration

[D].

combustion

Answer: Option B

Explanation:

No answer description available for this question.

Question: Neoprene is chemically known as
[A].

polybutadiene

[B].

styrene butadiene rubber (SBR)

[C].

polyurathane

[D].

polychloroprene

Answer: Option D

Explanation:

No answer description available for this question.