Safety & Environmental Protection (Deck) USCG Question #2526 (Set 76)

The SS AMERICAN MARINER has the following drafts: FWD 09'-00", AFT 15'-11". Upon completion of loading and bunkering the items shown in table ST-0034 below will be on board. Use the white pages of The Stability Data Reference Book to determine the minimum GM required to meet a one compartment standard.

Official USCG Answer & Rule Citation

Correct Answer: Option D — 2.62 feet

Calculating mean draft and trim from the specified forward and aft drafts allows extraction from the SS AMERICAN MARINER stability tables. Cross-referencing cargo weight and distribution data determines a minimum required metacentric height (GM) of 2.62 feet for compliance with one-compartment subdivision standards.

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