Oil accumulation in boiler water would __________.
Official USCG Answer & Rule Citation
Correct Answer: Option A — cause foaming and carryover from the boiler
Hydrocarbon contamination lowers surface tension, promoting violent steam bubble formation, priming, foaming, and carryover. Under 46 CFR boiler operating standards, oil on heating surfaces acts as an insulator, risking immediate thermal tube failure.
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