Question 317Steam Plants - Assistant Engineer70% to pass
In automated boiler operations, a dirty flame scanner will most likely result in _______________.
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.
Related Questions
#315 When firing a boiler in local manual control, an increase in boiler load must be accompanied by a/an _______________.#316 In an automatically fired boiler, the steam pressure regulator controls the supply of fuel oil to the burners by responding to variations in the _______________.#318 Which of the following represents a significant system limitation to be aware of when a burner management system is operated in the 'HAND' mode? #319 A photoelectric cell is installed in an oil fired boiler safeguard system to introduce proper resistance values to the electronic control circuit. This device is primarily sensitive to _______________.#320 As found in a basic pneumatic automatic combustion control system, the function of a standardizing relay is to _______________.