Question 2174 Deck Safety

The correct answer is B) KG. Subtracting the metacentric height (GM) from the height of the metacenter above the keel (KM) yields the vertical center of gravity (KG). This relationship is a fundamental principle in ship stability calculations, which are an important part of the US Coast Guard Captain's License Examinations. The other options are incorrect because: A) FS represents the longitudinal center of flotation, which is not related to the calculation in the question. C) GM is the quantity being subtracted, not the result of the subtraction. D) BL represents the height of the buoyancy above the keel, which is also not the result of subtracting GM from KM.