Question 4495Deck General70% to pass
The COASTAL DRILLER, in transit with winds expected to exceed 70 knots, must lower the legs to 60.5 feet below the hull in order to meet the requirements for stability and _______________.
AI Explanation
The correct answer is B) leg strength.
The requirement to lower the legs of the COASTAL DRILLER to 60.5 feet below the hull is primarily to ensure the leg strength can withstand the expected high winds of over 70 knots. The extended leg depth provides the necessary structural integrity and stability for the unit to safely operate in the expected environmental conditions.
The other options are incorrect because they do not directly address the need to ensure the leg strength can handle the environmental load from the high winds. The variable load and load line requirements would be secondary considerations, while the environmental load is the primary driver for the specified leg depth in this scenario.
Related Questions
#4493 While on an ocean tow, the COASTAL DRILLER is threatened with the approach of a severe storm. Including the time required to place the generators on-line, the approximate time required to lower the legs from a TOC (tip-of-can) position of 12.38 feet to 60.5 feet is _______________.#4494 The COASTAL DRILLER, in transit with winds expected to exceed 70 knots, must lower the legs so that the can tips are _______________.#4496 In an emergency, the jacking system on the COASTAL DRILLER is capable of elevating the unit with a loading of _______________. #4497 The COASTAL DRILLER is elevated while preparing for the passage of a severe storm. With ideal loading, the static loading on each of the three legs would be 4,715 kips. However, the LCG is 121 feet AFO and TCG is 0.5 foot to starboard of the centerline. By how many kips does the starboard leg reaction exceed the ideal loading? #4498 The primary purpose for using stud link chain in a mooring system on a rig is the _______________.