Safety & Environmental Protection (Deck) USCG Question #2530 (Set 76)

The SS AMERICAN MARINER has the following drafts: FWD 8'-04", AFT 15'-08". Upon completion of loading and bunkering the items shown in table ST-0047 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 A — 1.77 feet

Utilizing table ST-0047 alongside initial drafts of 8'-04" forward and 15'-08" aft within the stability reference tables accounts for specific deadweight distribution. This lookup provides the required floodable length and margin line criteria, determining the minimum acceptable GM of 1.77 feet.

100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.