A partially full tank causes a virtual rise...

Question 1 / 270705eccef9fbacbc34ba4d469cf

Question 1 of 270705eccef9fbacbc34ba4d469cf

A partially full tank causes a virtual rise in the height of the __________.

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Question 1 of 27070

Q

A partially full tank causes a virtual rise in the height of the __________.

🔍 Key Concepts

• Free surface effect in a partially filled tank • Relationship between center of gravity (G) and vessel stability • Difference between actual vs. virtual movement of stability points

💭 Think About

• When liquid moves in a slack (partially filled) tank, which stability point is affected in a way that reduces initial stability? • Ask yourself: does the shifting liquid change the underwater shape (buoyancy), the weight distribution (gravity), or the pivot points used in stability calculations? • Which point is said to move "virtually" upward even though no physical structure actually moved?

✅ Before You Answer

• Review how free surface effect is described in stability texts—what point is said to rise? • Make sure you can clearly distinguish between center of buoyancy (depends on underwater volume) and center of gravity (depends on weight distribution). • Verify which point’s virtual rise is used to explain a reduction in metacentric height (GM).

Question 1 of 27070

Q

A partially full tank causes a virtual rise in the height of the __________.

A

metacenter

B

center of buoyancy

C

center of gravity

D

center of flotation

Question 1 / 270705eccef9fbacbc34ba4d469cf

Question 1 of 270705eccef9fbacbc34ba4d469cf

A partially full tank causes a virtual rise in the height of the __________.

Back

Question 1 of 27070

Q

A partially full tank causes a virtual rise in the height of the __________.

🔍 Key Concepts

• Free surface effect in a partially filled tank • Relationship between center of gravity (G) and vessel stability • Difference between actual vs. virtual movement of stability points

💭 Think About

• When liquid moves in a slack (partially filled) tank, which stability point is affected in a way that reduces initial stability? • Ask yourself: does the shifting liquid change the underwater shape (buoyancy), the weight distribution (gravity), or the pivot points used in stability calculations? • Which point is said to move "virtually" upward even though no physical structure actually moved?

✅ Before You Answer

• Review how free surface effect is described in stability texts—what point is said to rise? • Make sure you can clearly distinguish between center of buoyancy (depends on underwater volume) and center of gravity (depends on weight distribution). • Verify which point’s virtual rise is used to explain a reduction in metacentric height (GM).