Question 4341 Deck General

The correct answer is A) deck edge immersion. The angle of maximum stability for a jack-up corresponds to the angle of deck edge immersion. This is because as the angle of heel increases, the deck edge will start to become submerged, reducing the righting arm and the vessel's stability. The angle of maximum stability is the point where the righting arm is at its maximum, which occurs just before the deck edge becomes submerged. The other options are incorrect because they do not directly relate to the angle of maximum stability for a jack-up. The angle of loll, downflooding, and the load line are not the primary factors determining the angle of maximum stability for this type of vessel.