Question: Combustion of furnace oil in a furnace (soaking pit) with preheated combustion air at 400°C results in saving of about __________ percent furnace oil as compared to its combustion with atmospheric air, if the flue gas outlet temperature from the soaking pit is 1200°C.
[A].5
60
20
40
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.