If the cause of a sudden severe list or trim...

If the cause of a sudden severe list or trim...

Question 1 of 27070673956e598d45f16831b6d3a

If the cause of a sudden severe list or trim is negative initial stability, counter-flooding into empty tanks located high on the vessel, may cause which of the following?

Question 1 of 27070

Q

If the cause of a sudden severe list or trim is negative initial stability, counter-flooding into empty tanks located high on the vessel, may cause which of the following?

🔍 Key Concepts

• Initial stability (GM) and how a negative GM affects a vessel’s ability to return upright • The effect of adding weight high up on the center of gravity (G) and metacentric height (GM) • How righting arm (GZ) and righting moment change when G moves up or sideways

💭 Think About

• Think about what happens to GM if you flood empty tanks that are located high on the vessel. Does GM get larger, smaller, or stay the same? • If GM becomes more negative, what does that do to the shape of the GZ curve and the vessel’s tendency to return to or move away from upright? • Which choice best matches the behavior of a vessel with worsened (more negative) initial stability after adding weight high?

✅ Before You Answer

• Verify whether flooding high tanks raises or lowers the center of gravity (G). • Check how a higher G (smaller or negative GM) affects the righting arm (GZ) and righting moment (W × GZ). • Match the physical behavior: would the vessel more likely move toward upright equilibrium, stay about the same, or roll further to one side when stability is further reduced?