Question 2382 Deck Safety

70% to pass

The SS AMERICAN MARINER has drafts of: FWD 28'-00", AFT 30'-04". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 110.8 tons of seawater.

A FWD 28'-09.8", AFT 29' 10.4"
B FWD 28'-08.2", AFT 29'-11.6"
C FWD 28'-10.6", AFT 29' 09.8"
D FWD 28'-09.0", AFT 29' 11.0"
AI Explanation

The correct answer is A) FWD 28'-09.8", AFT 29' 10.4". When ballasting the forepeak with 110.8 tons of seawater, the vessel's drafts will change due to the added weight. Using the white pages of the Stability Data Reference Book, which provide guidance on calculating draft changes, we can determine the new drafts. With the additional 110.8 tons of ballast in the forepeak, the forward draft increases by 9.8 inches, from 28'-00" to 28'-09.8", while the aft draft decreases by 6 inches, from 30'-04" to 29'-10.4". This is the correct answer based on the information provided in the question. The other answer choices are incorrect because they do not accurately reflect the changes in draft resulting from the ballasting operation.

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