Pulverised fuel fired furnaces employ ______________ fuel firing?

Question: Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures.
[A].

350

[B].

750

[C].

1050

[D].

1250

Answer: Option B

Explanation:

No answer description available for this question.

Question: While the fuel fired furnace can be used upto a maximum temperature of about 1700°C, the electric furnace can be used upto a temperature of about __________ °C.
[A].

2000

[B].

3000

[C].

4500

[D].

6000

Answer: Option C

Explanation:

No answer description available for this question.

Question: Ostwald charts are meant for
[A].

computing the excess/deficiency of combustion air.

[B].

calculation of flue gas temperature.

[C].

computation of flue gas analysis.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.