Question 2036 Deck Safety

The correct answer is A) M is not fixed at large angles. The reason this is the correct answer is that at large angles of inclination, the position of the metacenter (M) is no longer fixed relative to the center of gravity (G). This is because the shape of the ship's hull and the distribution of its weight change significantly at large angles, causing the position of the metacenter to shift. As a result, the stability indicator GM (the distance between the center of gravity and the metacenter) is not a reliable indicator of stability at all angles of inclination. The other answer choices are incorrect because they do not accurately reflect the reason why GM cannot be used as an indicator of stability at large angles. Specifically, G is still fixed at large angles, and there is still a metacenter (M) present, but its position is not fixed.