Question 2161 Deck Safety

The correct answer is A) GM. The difference between the height of the metacenter (M) and the height of the center of gravity (G) is called the metacentric height, which is denoted as GM. This is a crucial parameter in the stability analysis of a vessel, as it determines the initial stability of the ship. The other options are incorrect because: B) KM represents the height of the metacenter above the keel, not the difference between the metacenter and the center of gravity. C) KB represents the height of the center of buoyancy above the keel, which is not relevant to the difference between the metacenter and the center of gravity. D) KG represents the height of the center of gravity above the keel, which is also not the difference between the metacenter and the center of gravity.