If the vertical center of gravity (VCG) of a...

Question 1 / 2066636eec28f7522a1c51d089

Question 1 of 2066636eec28f7522a1c51d089

If the vertical center of gravity (VCG) of a ship rises, the righting arm (GZ) for the various angles of inclination will __________.

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Question 1 of 20

66636eec28f7522a1c51d089

If the vertical center of gravity (VCG) of a ship rises, the righting arm (GZ) for the various angles of inclination will __________.

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🔍 Key Concepts

• Vertical center of gravity (VCG) and how moving it up or down affects stability • Relationship between GZ (righting arm), G (center of gravity), and angles of heel • What happens to a vessel’s stiffness/tenderness when VCG rises

💭 Think About

• Picture the ship heeling and imagine the line of action of weight (through G) and buoyancy: if G moves higher, what happens to the horizontal distance between these two forces? • Think about what happens to metacentric height (GM) when VCG rises, and how GM relates to the GZ curve for small angles. • Consider whether the change in GZ is simply a fixed numerical amount at all angles, or whether the overall size of the righting-arm curve is different.

✅ Before You Answer

• Be clear on whether raising VCG makes the vessel more stable or less stable at small angles. • Ask whether GZ values at various angles would all stay identical, or systematically larger or smaller when G is raised. • Check if a change in VCG would produce a constant shift by a formula at all angles, or a general trend (up or down) in the righting arms.

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Question 1 of 20

If the vertical center of gravity (VCG) of a ship rises, the righting arm (GZ) for the various angles of inclination will __________.

be changed by the amount of GG' x cosine of the angle

remain unchanged

decrease

increase

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Question 1 / 2066636eec28f7522a1c51d089

Question 1 of 2066636eec28f7522a1c51d089

If the vertical center of gravity (VCG) of a ship rises, the righting arm (GZ) for the various angles of inclination will __________.

Back

Question 1 of 20

66636eec28f7522a1c51d089

If the vertical center of gravity (VCG) of a ship rises, the righting arm (GZ) for the various angles of inclination will __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed