The effect of free surface on initial...

Question 1 / 2707066636ef128f7522a1c521ea3

Question 1 of 2707066636ef128f7522a1c521ea3

The effect of free surface on initial stability depends upon which item(s)?

Question 1 of 27070

The effect of free surface on initial stability depends upon which item(s)?

🔍 Key Concepts

• Free surface effect and how it reduces metacentric height (GM) • Relationship between liquid surface area and loss of stability • How vessel displacement influences the magnitude of free surface effect

💭 Think About

• Think about what actually changes when liquid moves side-to-side in a slack tank: is it the length, the depth, or the area of the free surface that matters most? • Consider whether the amount of liquid changes the effect once the tank is already slack, or if something else is more critical. • Ask yourself how a very large ship and a very small ship, each with the same size slack tank, would be differently affected by free surface.

✅ Before You Answer

• Identify which option refers to surface dimensions rather than just one linear dimension. • Check which choice, if any, connects the effect to overall vessel displacement (weight of the vessel). • Verify that the option you pick is consistent with the idea that free surface effect is related to moment of inertia of the liquid surface, not just how full the tank is.

Question 1 of 27070

The effect of free surface on initial stability depends upon which item(s)?

Only the length of the compartment

The vertical position of the liquid in the vessel

The amount of liquid in the compartment

The dimensions of the liquid surface and the vessel's displacement

Question 1 / 2707066636ef128f7522a1c521ea3

Question 1 of 2707066636ef128f7522a1c521ea3

The effect of free surface on initial stability depends upon which item(s)?

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Question 1 of 27070

The effect of free surface on initial stability depends upon which item(s)?