The SS AMERICAN MARINER is ready to bunker with drafts of FWD 20'-04", AFT 23'-06". After all bunkers are on board, soundings indicate the tonnages shown in table ST-0172 below. Use the white pages of The Stability Data Reference Book to determine the free surface correction.
Official USCG Answer & Rule Citation
Correct Answer: Option B — 0.80 foot
Reference to table ST-0172 within the vessel's stability book provides the necessary tank capacities and free surface moments, which correctly compute to a free surface correction of 0.80 foot under the given draft conditions.
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