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Certified Energy Manager (CEM)
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Which of the following is a significant negative consequence of having too much excess air in the boiler combustion process?
Increased production of carbon monoxide (CO) and soot.
A higher risk of furnace explosion due to unburnt fuel.
Decreased boiler efficiency due to excess heat being carried up the stack.
Corrosion of boiler tubes due to flue gas condensation.
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Correct Answer:
Decreased boiler efficiency due to excess heat being carried up the stack.
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