Question 2505 Deck Safety

70% to pass

Your vessel displaces 585 tons and measures 128'L by 26'B. What is the reduction in GM due to free surface if the fish hold

A A
B B
C C
D D
AI Explanation

The correct answer is A. The reduction in GM (metacentric height) due to free surface effect is calculated using the formula: Reduction in GM = B^2 / (12 * D) Where: B = Beam of the vessel (in feet) D = Displacement of the vessel (in tons) Given information: Vessel displacement = 585 tons Vessel dimensions = 128'L x 26'B Plugging in the values, we get: Reduction in GM = 26^2 / (12 * 585) = 676 / 7,020 = 0.096 feet Therefore, the correct answer is A. The other options are incorrect because they do not correctly calculate the reduction in GM using the provided formula and vessel characteristics.

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