‘Particulate’ air pollutants are finely divided solids and liquids. Which of the following is not a ‘particulate’ ?

Question: Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air.
[A].

5

[B].

10

[C].

20

[D].

35

Answer: Option C

Explanation:

No answer description available for this question.

Question: Calorific value of
[A].

light paraffinic fuel oils is equal to that of equivalent olefins.

[B].

n-paraffin is lower than that of iso-paraffins of the same compounds.

[C].

light paraffinic fuel oils is higher than that of equivalent olefins.

[D].

light paraffinic fuel oils is lower than that of equivalent olefins.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Artificial draught produced by a fan can be controlled by the
[A].

speed of the fan.

[B].

damper.

[C].

variation in the pitch of the fan blades.

[D].

all (a), (b)and(c).

Answer: Option D

Explanation:

No answer description available for this question.