Safety & Environmental Protection (Deck) USCG Question #2293 (Set 70)

The SS AMERICAN MARINER has drafts of: FWD 13'-05", AFT 21'-03". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 88 tons of seawater.

Official USCG Answer & Rule Citation

Correct Answer: Option D — FWD 14'-02.4", AFT 20'-08.7"

Ballasting the forepeak with 88 tons of seawater changes the forward draft significantly due to the large longitudinal distance from the center of flotation. Hydrostatic calculations from the vessel's stability book determine the resulting drafts as FWD 14'-02.4", AFT 20'-08.7".

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