Question 2034Deck Safety70% to pass
If the vertical center of gravity (VCG) of a ship rises, the righting arm (GZ) for the various angles of inclination will _______________.
AI Explanation
The correct answer is C) decrease.
When the vertical center of gravity (VCG) of a ship rises, the righting arm (GZ) for the various angles of inclination will decrease. This is because as the VCG rises, the distance between the center of gravity (G) and the center of buoyancy (B) decreases, reducing the righting moment (GZ) that acts to restore the ship to an upright position.
The other options are incorrect because:
A) The formula GG' x cosine of the angle is not applicable in this case, as it relates to the change in GZ due to a shift in the center of gravity, not a change in the VCG.
B) The righting arm (GZ) will not remain unchanged, as it is directly affected by the change in VCG.
D) The righting arm (GZ) will decrease, not increase, when the VCG rises.
Related Questions
#2032 The vertical distance between G and M is used as a measure of _______________.#2033 Unstable equilibrium exists at small angles of inclination when _______________.#2035 When stability of a vessel is neutral, the value of GM _______________.#2036 GM cannot be used as an indicator of stability at all angles of inclination because _______________.#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 _______________.