Question 2455 Deck Safety

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The SS AMERICAN MARINER is ready to bunker with drafts of FWD 14'-04", AFT 17'-06". After all bunkers are on board, soundings indicate the tonnages shown in table ST-0180 below. Use the white pages of The Stability Data Reference Book to determine the free surface correction.

Diagram for USCG Deck Safety: The SS AMERICAN MARINER is ready to bunker with drafts of FWD 14'-04", AFT...
A 1.15 feet
B 1.25 feet
C 1.31 feet
D 1.48 feet
AI Explanation

The correct answer is D) 1.48 feet. To determine the free surface correction, we need to refer to the white pages of The Stability Data Reference Book and use the given draft information. With the forward draft of 14'-04" and the aft draft of 17'-06", the vessel's mean draft is 15'-10". Using the table ST-0180 provided, we can find the corresponding free surface correction of 1.48 feet. The other options are incorrect because they do not match the value obtained from the reference book based on the provided draft information.

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Official Resources
46 CFR Lifesaving Equipment USCG Marine Safety Center USCG National Maritime Center
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