Question 4446 Deck General

The correct answer is C) 7°. The limiting angle of roll that does not exceed the design limits of the legs of the COASTAL DRILLER is 7°. This is based on the relationship between the roll period and the limiting angle of roll, which is defined by the stability criteria for this type of vessel. The other options are incorrect because 11° is too high, 9° is too high, and 5° is too low for the given roll period of 9 seconds. The 7° limiting angle is the value that corresponds to the 9-second roll period and ensures the vessel's stability remains within the design limits.