Question 2429 Deck Safety

The correct answer is B) 28 percent. The floodable length curve in the Stability Data Reference Book represents the maximum length of the vessel that can be flooded without causing the vessel to sink. If the curve represents 45 percent permeability and holds 4 and 5 flood, the vessel will sink if the permeability exceeds 28 percent. This is because the floodable length curve is based on the assumption of 45 percent permeability, and any increase beyond that (e.g., to 50 percent or more) would result in the vessel sinking. The other options are incorrect because they do not accurately reflect the relationship between the floodable length curve and the permeability threshold for the vessel to sink.