CHEMICAL ENGINEERING

Question: Milk is fat dispersed in water. It is an example of
[A].

suspension

[B].

emulsion

[C].

gel

[D].

solution

Answer: Option B

Explanation:

No answer description available for this question.

Question: Colloids can be purified by
[A].

dialysis

[B].

reverse osmosis

[C].

coagulation

[D].

peptization

Answer: Option A

Explanation:

No answer description available for this question.

Question: Out of the following, __________ waves have the largest wavelength.
[A].

radio

[B].

light

[C].

X-ray

[D].

Gamma-ray

Answer: Option A

Explanation:

No answer description available for this question.

Question: Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.
[A].

steel

[B].

lignite

[C].

water

[D].

lime stone

Answer: Option C

Explanation:

No answer description available for this question.

Question: Fire on fuel oil lines can be extinguished by
[A].

foam

[B].

steam

[C].

water

[D].

carbon dioxide

Answer: Option A

Explanation:

No answer description available for this question.

Question: Large scale fire on fuel gas line is normally extinguished by
[A].

water

[B].

steam

[C].

foam

[D].

nitrogen

Answer: Option D

Explanation:

No answer description available for this question.

Question: ‘Flare tower’ used in industry is meant for
[A].

venting off (after burning) the excess inflammable/toxic gases at high pressure.

[B].

absorbing the pollutant gases from the furnace exhaust.

[C].

cooling of furnace exhaust gases.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.

Question: ‘Sterilised zone’ around a hazardous chemical industry is an area with __________ km radius around it, in which the total population/inhabitants should be less than 20000 preferably in the upwind direction.
[A].

0.5

[B].

5

[C].

25

[D].

50

Answer: Option B

Explanation:

No answer description available for this question.

Question: Hardness & tensile strength of austenitic stainless steel can be increased by
[A].

martempering

[B].

cold working

[C].

normalising

[D].

hardening

Answer: Option B

Explanation:

No answer description available for this question.

Question: A psychrometer does not measure the __________ temperature of moist air.
[A].

dew point

[B].

dry bulb

[C].

wet bulb

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.