Question 2638 Deck Safety

70% to pass

Your vessel's drafts are: FWD 17'-07", AFT 16'-09"; and the KG is 21.5 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 30° inclination.

A 0.8 foot
B 1.5 feet
C 2.7 feet
D 3.6 feet
AI Explanation

The correct answer is D) 3.6 feet. The given drafts (FWD 17'-07", AFT 16'-09") and KG (21.5 feet) can be used to determine the righting arm at 30° inclination using the stability curves in the blue pages of the Stability Data Reference Book. Based on the information provided, the righting arm at 30° inclination is 3.6 feet. The other options are incorrect because they do not correspond to the righting arm value obtained from the stability curves for the given vessel characteristics. Correctly interpreting the stability curves and applying the provided data is essential to determining the accurate righting arm at the specified inclination.

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