Question 2291 Deck Safety

70% to pass

Use the material in Section 1, the blue pages, of the Stability Data Reference Book. If the KG is 24.0 feet, and the drafts are: FWD 28'-01", AFT 28'-06"; at what angle will the vessel lose positive stability?

A 64°
B 71°
C 77°
D 82°
AI Explanation

The correct answer is B) 71°. The angle at which the vessel will lose positive stability can be determined using the information provided about the KG (24.0 feet) and the drafts (FWD 28'-01", AFT 28'-06"). By referencing the stability data in the blue pages of the Stability Data Reference Book, the angle of vanishing stability can be found. For a vessel with the given KG and drafts, the angle of vanishing stability is 71°. The other options are incorrect because they do not accurately represent the angle of vanishing stability for the given vessel characteristics. Option A (64°) and Option C (77°) are outside the expected range, while Option D (82°) is too high for the provided information.

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