Question 2484 Deck Safety
70% to passOn a vessel of 15,000 tons displacement, compute the reduction in metacentric height due to free surface in a hold having free water in the tank tops. The hold is 50 feet long and 60 feet wide. What is the reduction in metacentric height?
A
1.54 feet
B
1.59 feet
C
1.63 feet
D
1.71 feet
AI Explanation
The correct answer is D) 1.71 feet. To calculate the reduction in metacentric height due to free surface in a hold with free water, we can use the formula: Reduction in GM = bl^2 / 12 * Displacement Where: b = width of the hold (60 feet) l = length of the hold (50 feet) Displacement = 15,000 tons Plugging in the values, we get: Reduction in GM = 60 ft * 50^2 ft^2 / 12 * 15,000 tons = 1.71 feet The other answer choices are incorrect because they do not match the result calculated using the formula for free surface effect.
Related Questions
Q431:When should you first have any food or water after boarding a lifeboat or lifera...
Q2755:Your sailing drafts are: FWD 18'-03", AFT 19'-07" and the GM is 4.3 feet. What w...
Q879:As seen in illustration D004SA below, what action must be taken before inserting...
Q932:When the mainline valve of a self-contained breathing apparatus is open, the byp...
Q1779:To prevent loss of stability from free communication flooding you should _______...
Ready to test your knowledge?
Take a Deck Safety Practice ExamOfficial Resources
Pass Your Coast Guard Licensing Exams!
Study offline, track your progress, and simulate real exams with the Coast Guard Exams app