A semisubmersible with displacement of...

Question 1 of 2707066636ee728f7522a1c51887d

A semisubmersible with displacement of 19,700 long tons and KG of 50.96 feet loads 300 long tons of barite into P-tanks located 120 feet above the keel. What is the change in KG?

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Question 1 of 27070

A semisubmersible with displacement of 19,700 long tons and KG of 50.96 feet loads 300 long tons of barite into P-tanks located 120 feet above the keel. What is the change in KG?

🔍 Key Concepts

• KG (height of center of gravity) and how loading weight above the existing KG affects it • The moment formula: weight × vertical distance moved = moment • Using the new KG formula: (old displacement × old KG + added weight × its KG) ÷ new displacement

💭 Think About

• What happens to the ship’s center of gravity when you add weight above the current KG—does KG go up or down? • How do you compute the total moments before and after loading, and how does that relate to the new KG? • Once you find the new KG, how do you turn that into a change in KG (difference between new KG and old KG) and match it with the closest option?

✅ Before You Answer

• Be sure to use long tons consistently for all weights (displacement and added weight). • Use the correct vertical position of the added weight (the P-tanks’ KG = 120 ft) in the calculation. • After finding new KG, subtract the original KG (50.96 ft) and check that the sign matches the direction in the answer choices (upward).