Question 4585 Deck General

The correct answer is D) 2.0 degrees. The largest angle each side of vertical that does not exceed the design limit of the legs is determined by the roll period of the vessel. With a roll period of 4 seconds, the roll angle that corresponds to the design limit of the legs is approximately 2.0 degrees. This is calculated based on established naval architecture principles and regulations for offshore drilling units. The other answer choices are incorrect because they do not accurately reflect the relationship between the roll period and the maximum allowable roll angle for the given design specifications.