Deck General USCG Question #4570 (Set 146)

For a MODU with trim, a decrease in GMT will cause the angle of inclination to __________.

Official USCG Answer & Rule Citation

Correct Answer: Option C — increase

Transverse metacentric height decreases with trim due to shifts in underwater volume geometry, lowering the effective transverse metacenter. As GMT approaches zero and turns negative, the vessel develops a compound angle of loll, seeking static equilibrium where the righting lever curve intersects zero.

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