Question 2430 Deck Safety

The correct answer is A) 66%. The floodable length curve in Section 1 of the Stability Data Reference Book represents the maximum permissible floodable length of a vessel based on various permeability factors. If the curve represents 45% permeability and number 5 hold floods, the vessel will sink if the permeability exceeds 66%. This is because the floodable length curve establishes the maximum permeability limit to prevent the vessel from sinking in the event of flooding. The other options are incorrect because they do not accurately reflect the permeability limit indicated by the floodable length curve under the given conditions.