Question 2083 Deck Safety

The correct answer is C) slack. A tank that is slack (not completely full or completely empty) can be dangerous to the stability of a vessel. This is because a slack tank allows the liquid to shift and move freely within the tank, which can affect the vessel's center of gravity and cause the vessel to become unstable. Options A, B, and D are incorrect because a tank that is low in the vessel, completely empty, or completely full is less likely to negatively impact the vessel's stability compared to a slack tank. Completely full or completely empty tanks are more stable as the liquid is not free to shift within the tank.