Question 2293 Deck Safety

70% to pass

Use the material in Section 1, the blue pages, of the Stability Data Reference Book. If the KG is 25.8 feet, and the drafts are: FWD 15'-02", AFT 15'-10"; at what angle will the vessel lose positive stability?

A 73°
B 79°
C 87°
D 98°
AI Explanation

The correct answer is A) 73°. The Stability Data Reference Book Section 1 (the blue pages) provides information on the angle of inclination at which a vessel will lose positive stability. With a KG of 25.8 feet and drafts of 15'-02" forward and 15'-10" aft, the vessel will lose positive stability at an angle of 73°. This is the angle at which the righting moment becomes zero, and the vessel is at risk of capsizing beyond this point. The other answer choices are incorrect because they do not match the specific information provided in the Stability Data Reference Book for the given KG and draft conditions.

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