A vessel continually lists to one side and...

🔍 Key Concepts

• List vs. loll – what is the difference between a permanent list and an unstable loll? • GM (metacentric height) and rolling period – how does a vessel’s rolling period change when GM is large, small, or negative? • Transverse weight distribution – what happens if weights are not evenly distributed port to starboard?

💭 Think About

• If a vessel has a normal rolling period, what does that say about the size and sign (positive/negative) of GM? • What physical situation would cause a vessel to lean permanently to one side while still being otherwise stable in roll? • Which options describe changes in the ship’s inherent stability characteristics (KM, GM) versus a simple shift in where the weight is located athwartships (side to side)?

✅ Before You Answer

• Verify what a normal rolling period indicates about GM (is it large, small, or about normal, and is it positive or negative?). • Check which option describes a condition that would create a permanent list to one side while keeping GM positive and rolling behavior normal. • Eliminate any options that would imply the vessel is unstable or neutrally stable, which would not match a vessel that rolls normally.

A vessel continually lists to one side and has a normal rolling period. Which statement is TRUE?

The list can be corrected by reducing KM.

The vessel has negative GM.

The vessel has asymmetrical weight distribution.

The center of gravity is on the centerline.

🔍 Key Concepts

💭 Think About

✅ Before You Answer