MI Boiler Operator Practice Questions - Michigan Boiler Operator License Exam

What does O2 reading in flue gas analysis indicate about combustion?

The amount of excess air being supplied — higher O2 means more excess air The amount of fuel being burned per hour The temperature of the combustion gases The carbon monoxide concentration in the exhaust

Correct Answer:

The amount of excess air being supplied — higher O2 means more excess air

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