Question 5080Deck General70% to pass
While in ocean transit, the COASTAL DRILLER has a roll period of four seconds. What would be the largest angle each side of vertical that does not exceed the design limit of the legs?
AI Explanation
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 corresponding maximum roll angle is 2.0 degrees each side of vertical, based on industry standards and regulations for offshore platform design.
The other answer choices are incorrect because they do not align with the typical design limits for a vessel with a 4-second roll period. Higher angles, such as 6.3 degrees, 5.0 degrees, or 3.5 degrees, would likely exceed the structural design limits and could potentially compromise the stability and safety of the offshore platform.
Related Questions
#5078 The COASTAL DRILLER is in ocean transit in which the winds are not expected to exceed 70 knots. In order to meet the leg strength requirements, the tip of can (TOC) position should be at _______________.#5079 The COASTAL DRILLER, while in transit, expects the winds to increase to 75 knots. In order to meet the stability and leg strength requirements, the tip-of-can (TOC) position should be at _______________.#5081 The motions of the COASTAL DRILLER during a normal transit when wind speeds are less than 70 knots are limited by _______________.#5082 Curve A in the Design Limits of Legs Chart of the Coastal Driller Operating Manual, shows the operating limits during severe storm conditions during transit based on _______________.#5083 Curve B in the Design Limits of Legs Chart of the Coastal Driller Operating Manual, shows the operating limits during normal transit based on _______________.