Question 2219 Deck Safety

70% to pass

A vessel's LCG is determined by _______________.

A multiplying the MT1 by the longitudinal moments
B subtracting LCF from LCB
C dividing the total longitudinal moment summations by displacement
D dividing the total vertical moment summations by displacement
AI Explanation

The correct answer is C) dividing the total longitudinal moment summations by displacement. The vessel's longitudinal center of gravity (LCG) is determined by dividing the total longitudinal moment summations by the vessel's displacement. This is the standard calculation method used to find the LCG, as it takes into account the weight and longitudinal position of all components on the vessel. The other answer choices are incorrect because: A) multiplying MT1 by longitudinal moments is not the correct formula for determining LCG, B) subtracting LCF from LCB does not directly give the LCG, and D) dividing vertical moment summations by displacement would give the vertical center of gravity, not the longitudinal center of gravity.

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