MI Boiler Operator Practice Questions - Michigan Boiler Operator License Exam

What type of corrosion is caused by dissolved carbon dioxide in boiler condensate?

Carbonic acid corrosion creating grooving in condensate return lines Oxygen pitting on boiler tube surfaces Caustic embrittlement at tube-to-drum joints Galvanic corrosion between dissimilar metals

Correct Answer:

Carbonic acid corrosion creating grooving in condensate return lines

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