Question 4779 Deck General

The correct answer is D) 0 foot-tons. When a vessel is level at a draft of 60 feet in calm water, the righting moment is 0 foot-tons. This is because the center of gravity and the center of buoyancy are aligned vertically, and there is no overturning moment or righting moment acting on the vessel. The other answer choices are incorrect because they do not accurately represent the righting moment for a vessel that is level at a draft of 60 feet in calm water. In this scenario, there is no righting moment present, as the vessel is in a stable, level position.