Question 2535 Deck Safety
70% to passYour 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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