Question 2218 Deck Safety

70% to pass

The LCG of a vessel may be found by dividing displacement into the _______________.

A longitudinal center of gravity of the vessel
B longitudinal baseline of the vessel
C sum of the vertical moments of the vessel
D sum of the longitudinal moments of the vessel
AI Explanation

The correct answer is D) sum of the longitudinal moments of the vessel. The longitudinal center of gravity (LCG) of a vessel is found by dividing the sum of the longitudinal moments of the vessel by the total displacement. The longitudinal moment is the product of the weight of each component and its distance from a reference point, typically the forward perpendicular. By dividing the sum of these longitudinal moments by the total displacement, the location of the LCG along the length of the vessel can be determined. The other options are incorrect because they do not accurately describe how the LCG is calculated. The longitudinal baseline and vertical moments are not directly used in the LCG calculation.

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