Air/gas ratio for complete combustion will be the highest for__________________?

Question: Assam coals suffers mainly from the disadvantage of high __________ content.
[A].

ash

[B].

volatile matter

[C].

sulphur (4-6%)

[D].

moisture

Answer: Option C

Explanation:

No answer description available for this question.

Question: White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is
[A].

tar

[B].

coke oven gas

[C].

pitch

[D].

pulverised coke

Answer: Option B

Explanation:

No answer description available for this question.

Question: Low temperature oxidation of stored coal results in the
[A].

decrease in its caking power & calorific value.

[B].

decrease in its carbon & hydrogen content.

[C].

increase in its oxygen content.

[D].

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

Answer: Option D

Explanation:

No answer description available for this question.

Question: Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C.
[A].

400-500

[B].

900-1000

[C].

1400-1500

[D].

1700-1800

Answer: Option B

Explanation:

No answer description available for this question.