Question 1041 Deck General

70% to pass

Which statement about the inert gas system is TRUE?

A Flue gas with excessive oxygen content is de-oxygenated in the scrubber.
B The boiler will produce the best quality of flue gas for the IG system when the boiler load is very light.
C Boiler soot blowers should never be used when the IG system is operating.
D The boiler will produce the most quantity of flue gas for the IG system when the boiler load is very light.
AI Explanation

The correct answer is C) Boiler soot blowers should never be used when the IG system is operating. The inert gas system relies on the proper quality and quantity of flue gas from the boiler to function correctly. Using the boiler's soot blowers while the IG system is operating can disrupt the IG system by introducing excessive oxygen or soot into the flue gas, which can damage the equipment. Regulations require that soot blowers be secured when the IG system is in use to maintain the proper inert gas composition. The other answer choices are incorrect because A) the scrubber removes excess oxygen, not adds it, B) and D) the boiler load affects the quantity but not quality of flue gas for the IG system.

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