Adding the longitudinal free surface...

Question 1 of 270705eccef9fbacbc34ba4d469ee

Adding the longitudinal free surface correction to the uncorrected height of the center of gravity of a MODU yields __________.

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Question 1 of 27070

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Adding the longitudinal free surface correction to the uncorrected height of the center of gravity of a MODU yields __________.

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🔍 Key Concepts

• Meaning of KG (height of center of gravity above keel) • Effect of longitudinal free surface vs transverse free surface corrections • Difference between corrected and uncorrected stability parameters (e.g., KG vs KGL, GM vs GML)

💭 Think About

• Ask yourself: when you apply a longitudinal free surface correction, are you adjusting a height (K-something, G-something) or a metacentric distance (GM-something)? • Look at each option: which ones represent a height of the center of gravity and which represent metacentric heights or free-surface lever arms? • Think about the usual notation: where does the letter L get added when we are talking about longitudinal stability quantities?

✅ Before You Answer

• Identify which symbol in the choices specifically refers to the height of G above the keel in the longitudinal sense. • Eliminate any options that are clearly metacentric heights rather than center-of-gravity heights. • Verify how the suffix L is used in standard MODU stability notation: is it attached to KG, GM, or the free-surface term itself?