Question 2167Deck Safety70% to pass
GM cannot be used as an indicator of stability at all angles of inclination because _______________.
AI Explanation
The correct answer is D) M is not fixed at large angles.
This is because at large angles of inclination, the value of the metacentric height (M) is not constant and can vary significantly. The metacentric height is the distance between the center of gravity (G) and the metacenter (M), which is the point where the buoyancy force acts. At large angles, the position of the metacenter changes, and it is no longer fixed relative to the ship's center of gravity. This means that the GM value, which is an indicator of a ship's initial stability, cannot be reliably used as an indicator of stability at all angles of inclination.
The other options are incorrect because A) there is a G at large angles, even though its position may change, and B) G is not fixed at large angles, but this is not the primary reason why GM cannot be used as an indicator of stability at all angles.
Related Questions
#2165 A negative metacentric height _______________.#2166 The righting moment can be determined by multiplying the displacement by the _______________.#2168 The horizontal distance between the vertical lines of action of gravity and the buoyant forces is called the _______________.#2169 Metacentric height is a measure of _______________.#2170 In small angle stability, the metacentric height _______________.