Question 317Steam Plants - Assistant Engineer
70% to passIn automated boiler operations, a dirty flame scanner will most likely result in _______________.
Aloss of forced draft air
Bsecuring fuel oil to the burner
Cincomplete purge cycle
Dincreased fuel oil consumption
AI Explanation
The correct answer is B) securing fuel oil to the burner. A dirty flame scanner will likely not detect the presence of a flame, which would then trigger the safety systems to secure fuel oil to the burner. This is a standard safety mechanism to prevent unburnt fuel from accumulating and potentially causing a fire or explosion. The other answer choices are incorrect because: A) a dirty flame scanner would not affect the forced draft air, C) the incomplete purge cycle is more likely caused by a problem with the purge timing rather than the flame scanner, and D) increased fuel oil consumption would be more likely caused by improper air-fuel ratio adjustments, not the flame scanner itself.
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