Deck Rules (Supplementary) USCG Q#1353 (Set 4)

Spreading oil on the open sea has the effect of __________.

Official USCG Answer & Rule Citation

Correct Answer: Option C — preventing the wave crests from breaking

Spreading heavy oil on rough seas creates a slick that dampens capillary waves and prevents wave crests from breaking, significantly improving survival craft stability.

All Deck Rules (Supplementary) Sets Practice Set 4