Question 2307 Deck Safety

70% to pass

Your vessel's drafts are: FWD 19'-03", AFT 21'-03". The LCG of the forepeak is 200 feet forward of amidships. How many tons of ballast must be pumped into the forepeak in order to have a drag of 18 inches? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)

A 27 tons
B 31 tons
C 34 tons
D 37 tons
AI Explanation

The correct answer is B) 31 tons. To determine the amount of ballast needed, we need to use the formula for the change in draft given in the Stability Data Reference Book, Section 1 (the blue pages). The formula is: change in draft = (change in displacement) / (LBP x beam x CB). Given the forward and aft drafts, we can calculate the change in draft needed to reach 18 inches. Using the provided LCG of the forepeak, we can then calculate the change in displacement required, which corresponds to 31 tons of ballast. The other answer choices are incorrect because they do not accurately reflect the change in displacement required to achieve the target 18-inch draft.

Related Questions
Q@q.QuestionNumber:Your vessel's drafts are: FWD 14'-04", AFT 17'-08". The LCG of the forepeak is ... Q@q.QuestionNumber:The vessel shown in illustration D025DG has broken down and you are going to tak... Q@q.QuestionNumber:When the handle of an all-purpose nozzle is in the forward position, the nozzle ... Q@q.QuestionNumber:Utilizing illustration D038SA below of the fire control plan of the lower engine... Q@q.QuestionNumber:One of the signals, other than a distress signal, that can be used by a rescue b...

Ready to test your knowledge?

Take a Deck Safety Practice Exam
Official Resources
46 CFR Lifesaving Equipment USCG Marine Safety Center USCG National Maritime Center
← Previous All Questions Next →

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience with progress tracking.

Get the App