Question 2431 Deck Safety

70% to pass

Use the floodable length curve in Section 1, the blue pages, of the Stability Data Reference Book. If the curve represents 45 percent permeability and number 4 hold floods, the vessel will sink if the permeability exceeds what percent?

A 40
B 48
C 53
D 60
AI Explanation

The correct answer is D) 60 percent. The floodable length curve in the Stability Data Reference Book represents the maximum allowable permeability for a given flooding scenario. If the actual permeability of the flooded space exceeds 60 percent, the vessel will sink. This is because the vessel's stability is compromised when the permeability is higher than the 45 percent assumed in the floodable length curve for the number 4 hold flooding scenario. The other options are incorrect because 40 percent (A) and 48 percent (B) are below the 60 percent threshold, while 53 percent (C) is still lower than the actual permeability limit.

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