You have 400 tons of below deck tonnage....

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Question 1 of 2066636eec28f7522a1c51bef3

You have 400 tons of below deck tonnage. There is no liquid mud aboard. If you have 225 tons of cargo above deck with a VCG above the deck of 3.4 feet, what is the maximum allowed VCG of the remainder of the deck cargo that is permitted? See illustration D036DG below.

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🔍 Key Concepts

• Use the USCG stability loading diagram (D036DG) to relate below-deck tonnage to allowable deck cargo and its VCG. • Treat the 225 tons of known deck cargo as one weight with a fixed VCG of 3.4 ft above deck, and the "remainder" as a second unknown weight with an unknown VCG. • Use the combined center of gravity formula: total deck-cargo VCG is the weighted average of the individual deck-cargo VCGs, and it must not exceed the limit given on the diagram and in the note (max deck cargo VCG 3.0 ft above deck).

💭 Think About

• From the loading diagram, for 400 tons below deck, what is the maximum tons of deck cargo and the maximum allowable VCG of the combined deck cargo? • If 225 tons of that deck cargo already sit at 3.4 ft VCG, what must the VCG of the remaining deck cargo be so that the overall deck-cargo VCG does not exceed the diagram’s limit? • Set up the weighted-average equation for the combined VCG of deck cargo and solve for the unknown VCG of the remainder, then compare to the answer choices.

✅ Before You Answer

• From D036DG, verify the maximum allowed deck cargo weight corresponding to 400 tons below deck and note exactly which curve/line you are using. • Confirm the maximum allowed deck-cargo VCG from the written instructions under the diagram (in feet above deck). • Double‑check the combined VCG equation: \(VCG_{total} = \frac{w_1 , VCG_1 + w_2 , VCG_2}{w_1 + w_2}\) and that you are using long tons consistently.

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