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 5 hold floods, the vessel will sink if the permeability exceeds what percent?

Official USCG Answer & Rule Citation

Correct Answer: Option A — 66%

Single-compartment analysis of hold number 5 utilizing the stability reference curves demonstrates a critical permeability limit of 66 percent before loss of reserve buoyancy occurs.

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