What type of vent is required on a barge transporting No. 6 fuel oil?
Official USCG Answer & Rule Citation
Correct Answer: Option B — Gooseneck vents fitted with flame screens
According to 46 CFR regulations governing tank barges, high-viscosity, high-flashpoint products such as No. 6 fuel oil (a Grade E combustible liquid) require simple, reliable venting. Gooseneck vents fitted with approved flame screens provide adequate atmospheric communication while preventing flame propagation.
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