Safety & Environmental Protection (Deck) USCG Question #2603 (Set 79)

Your vessel displaces 640 tons. The existing deck cargo has center of gravity of 2.3 feet above the deck and weighs 18 tons. If you load 12 tons of ground tackle with an estimated center of gravity of 21 inches above the deck, what is the final height of the CG of the deck cargo?

Official USCG Answer & Rule Citation

Correct Answer: Option C — 2.08 feet

Converting 21 inches to 1.75 feet, moments are summed: (18 tons × 2.3 ft) plus (12 tons × 1.75 ft). Dividing by the total cargo weight of 30 tons yields a final center of gravity height of 2.08 feet.

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