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Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because | |
A. | the hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot. [Correct Answer] |
B. | it reduces its calorific value tremendously. [Wrong Answer] |
C. | it reduces its flame temperature tremendously. [Wrong Answer] |
D. | there are chances of explosion during preheating. [Wrong Answer] |