Vessel stability is greatly affected when...

Question 1 / 270705eccef9fbacbc34ba4d469c5

Question 1 of 270705eccef9fbacbc34ba4d469c5

Vessel stability is greatly affected when water or fuel tanks are partially filled as a result of the __________.

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Question 1 of 27070

Vessel stability is greatly affected when water or fuel tanks are partially filled as a result of the __________.

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🔍 Key Concepts

• vessel stability and how the center of gravity moves • what happens when liquid can move side-to-side in a partially filled tank • difference between liquid sloshing inside a closed tank vs. water freely entering the hull

💭 Think About

• Think about which option describes liquid shifting inside a tank and how that might make a vessel easier to tip. • Ask yourself: which effect reduces a vessel’s ability to right itself without necessarily changing the draft very much? • Consider whether the problem is added buoyancy, less buoyancy, or a change in the way weight is distributed when the vessel heels.

✅ Before You Answer

• Identify which term refers to liquid moving across a tank and increasing the heeling moment. • Eliminate any options that mainly describe water flowing in and out of the hull, rather than just moving inside a tank. • Check which options would primarily change displacement or draft, versus which one mainly changes stability (metacentric height/righting arm).

Question 1 of 27070

Vessel stability is greatly affected when water or fuel tanks are partially filled as a result of the __________.

free surface effect

free communication effect

increase of buoyancy

decrease in draft

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