🔍 Key Concepts

• Freeing ports and their function on ships with solid bulwarks • How shipped (green) water behaves on deck in heavy seas • Relationship between drainage and stability/safety of a vessel

💭 Think About

• Think about what happens if a large amount of seawater stays trapped on deck behind solid bulwarks. How would that affect the ship? • Which choice describes something that must happen quickly for safety when the deck gets washed by waves? • Look at each option and ask: does this sound like a function of an opening in the bulwark, or something else?

✅ Before You Answer

• Verify which option is directly related to removing water from the deck. • Check which choices describe long-term structural or weight issues, not the immediate effect of waves washing on deck. • Confirm that freeing ports are not primarily for handling cargo, but for dealing with seawater on deck.