The SS AMERICAN MARINER is partially loaded...

Question 1 of 2707066636eec28f7522a1c51cbe2

The SS AMERICAN MARINER is partially loaded with a GM of 3.1 feet and drafts of: FWD 19'-06", AFT 21'-04". Use the white pages of the Stability Data Reference Book to determine what tank(s) you should ballast to increase the GM to 3.7 feet.

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Question 1 of 27070

🔍 Key Concepts

• Metacentric height (GM) and how adding ballast high vs. low affects it • How to use the Stability Data Reference Book white pages to find the effect of filling specific tanks on GM and trim • Effect of filling double bottoms (DB) vs. deep tanks (DT) on vertical center of gravity (KG)

💭 Think About

• Compare how each listed tank (DB vs. DT, and its fore‑and‑aft location) will change the ship’s KG and therefore GM • Look at what happens to drafts and trim when each candidate tank or tank group is filled according to the white pages data • Decide which option produces an increase from GM 3.1 ft to 3.7 ft without causing an unrealistic trim or draft condition

✅ Before You Answer

• Verify in the white pages which tanks are low in the ship (double bottoms) versus higher (deep tanks) and how that generally affects GM • Check the tabulated ΔGM or KG correction in the Stability Data Reference Book for each tank or combination of tanks listed in the choices • Confirm that the resulting final GM and drafts after ballasting match the target GM 3.7 ft and are within reasonable draft limits