Question 129Safety & Environmental - Assistant Engineer

The correct answer is C) G will rise. When additional weight is placed on the main deck of a vessel, the vessel's center of gravity (G) will rise. This is because the added weight increases the overall weight of the vessel, which causes the center of gravity to shift upwards. As the center of gravity (G) rises, the vessel's stability is reduced, as indicated by a decrease in the metacentric height (GM). The other options are incorrect because: A) KB (the distance between the vessel's center of buoyancy and the keel) will not go down, as it is not directly affected by the added weight on the deck. B) GM (the metacentric height) will decrease, not increase, due to the rise in the center of gravity (G). D) K (the position of the keel) will not rise, as the keel remains fixed in position.