Fuels and Combustion

Question: For maximum discharge through a chimney, its height should be
[A].

200 meters.

[B].

infinitely long.

[C].

more than 105.7 metres.

[D].

equal to the height of the hot gas column producing draught.

Answer: Option D

Explanation:

No answer description available for this question.

Question: Incomplete combustion of a fuel is characterised by the high __________ in the flue gas.
[A].

smoke

[B].

temperature

[C].

oxygen

[D].

carbon monoxide

Answer: Option D

Explanation:

No answer description available for this question.

Question: Calorific value as determined by bomb calorimeter is the
[A].

higher calorific value at constant volume.

[B].

gross calorific value at constant pressure.

[C].

lower calorific value at constant pressure.

[D].

net calorific value at constant volume.

Answer: Option A

Explanation:

No answer description available for this question.

Question: In flue gas analysis by Orsat’s apparatus, carbon monoxide is absorbed by
[A].

cuprous chloride

[B].

potassium hydroxide

[C].

alkaline pyrogallol solution

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.