On a vapor control system, each vessel's vapor connection flange must have a __________.
Official USCG Answer & Rule Citation
Correct Answer: Option D — stud at least 1" long projecting from the flange face
Vapor control system regulations mandate that every vessel vapor connection flange incorporate a stud projecting at least 1 inch from the flange face. This aligns with standard safety grounding and gasket protocols to prevent incorrect hookups.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.