Which of the following describes why topside icing, which is usually off-center, decreases vessel stability?
• Transverse stability and how weight location affects it • Effect of adding weight high above the waterline on the center of gravity • The special problem of off-center (asymmetric) weights like topside icing
• When you add weight to a vessel, what two main stability properties are you concerned with: where the weight is located vertically, and where it is located sideways? • Which choice directly relates to how adding weight high and off-center affects the vessel’s tendency to heel and its ability to come back upright? • Look at which options describe a change in weight distribution versus a change only in how much water the ship displaces.
• Identify which option refers to the vertical position of the center of gravity (G) rather than just total weight or draft. • Ask: Which effect would make the vessel tender and more likely to remain heeled if pushed over? • Eliminate any answers that don’t clearly relate to where the added weight is located on the vessel.
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