Question 2036Deck Safety70% to pass
GM cannot be used as an indicator of stability at all angles of inclination because _______________.
AI Explanation
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.
Related Questions
#2034 If the vertical center of gravity (VCG) of a ship rises, the righting arm (GZ) for the various angles of inclination will _______________.#2035 When stability of a vessel is neutral, the value of GM _______________.#2037 In small-angle stability, when external forces exist, the buoyant force is assumed to act vertically upwards through the center of buoyancy and through the _______________.#2038 The righting moment can be determined by multiplying the displacement by the _______________.#2039 A vessel would be referred to as "tender" when the weight of the cargo is _______________.