Question 2535 Deck Safety

70% to pass

Your vessel measures 128 feet long by 21 feet in beam. If the natural rolling period at a draft of 7'-06" is 6 seconds, what is the GM?

A 1.56 feet
B 2.37 feet
C 2.55 feet
D 2.74 feet
AI Explanation

The correct answer is B) 2.37 feet. The formula to calculate the GM (metacentric height) is: GM = T^2 / (0.851 * L), where T is the natural rolling period in seconds and L is the vessel's length in feet. Plugging in the given values: GM = 6^2 / (0.851 * 128) = 2.37 feet. The other answer choices are incorrect because they do not correctly apply the formula to the provided vessel dimensions and natural rolling period.

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