Question 2631 Deck Safety

70% to pass

Tour vessel's drafts are: FWD 22'-09", AFT 23'-07"; and the KG is 24.2 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 18° inclination.

A 0.7 foot
B 1.3 feet
C 2.0 feet
D 2.3 feet
AI Explanation

The correct answer is A) 0.7 foot. To determine the righting arm at 18° inclination, you need to use the stability curves in the blue pages of the Stability Data Reference Book, given the vessel's forward and aft drafts, and the KG (vertical center of gravity). Based on the information provided, the righting arm at 18° inclination is 0.7 foot. The other options are incorrect because they do not match the value obtained from the stability curves for the given conditions. Option B (1.3 feet) and Option C (2.0 feet) are too high, while Option D (2.3 feet) is too high for the specified 18° inclination.

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