You have 640 tons of below deck tonnage....

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Question 1 of 2066636eec28f7522a1c51bf04

You have 640 tons of below deck tonnage. There is no liquid mud aboard. If you have 160 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 loading diagram D036DG to find the maximum total long tons of deck cargo allowed when you already have 640 LT below deck and no liquid mud. • Apply the combined VCG formula for two weights: existing deck cargo (160 LT at 3.4 ft) and the remainder of deck cargo at unknown VCG so that the overall deck cargo VCG does not exceed the limit shown in the instructions. • Remember that the stability letter states a maximum deck cargo VCG of 3.0 ft above deck, which applies to the total deck cargo (all pieces combined).

💭 Think About

• From the diagram, for 640 LT of below‑deck tonnage, what is the highest point on the safe side of the curve, and what does that value on the vertical axis represent for total deck cargo? • Once you know the maximum total deck cargo allowed, how much additional (remainder) deck cargo, in long tons, can you still load beyond the 160 LT already on deck? • If the combined VCG of all deck cargo must be 3.0 ft, how can you set up an equation using the known weight and VCG (160 LT at 3.4 ft) and the unknown weight and VCG of the remainder to solve for the remainder’s maximum VCG?

✅ Before You Answer

• Verify you are reading below‑deck tonnage on the horizontal axis and above‑deck cargo on the vertical axis, and that you are using the correct curve for the “SAFE LOADING” zone. • Confirm from the text under the diagram that the maximum deck cargo VCG is 3.0 ft above deck and that this limit applies to the combined deck cargo, not each piece separately. • When you set up the VCG equation, double‑check that you use long tons for all weights and that you divide by the total deck cargo weight (160 LT + remainder) when computing the combined VCG.

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