Question 4494Deck General70% to pass
The COASTAL DRILLER, in transit with winds expected to exceed 70 knots, must lower the legs so that the can tips are _______________.
AI Explanation
The correct answer is A) 60.5 feet below the hull.
When operating a coastal driller in high winds (above 70 knots), the legs must be lowered such that the can tips are 60.5 feet below the hull. This requirement is specified in the regulations governing the operations of coastal drillers, as it helps to provide stability and prevent the vessel from capsizing in adverse weather conditions.
The other options are incorrect because they do not meet the regulatory requirement for the leg clearance during high wind operations. For example, 48.5 feet, 11.6 feet, or 1.2 feet below the hull would not provide the necessary stability and safety margins required by the regulations.
Related Questions
#4492 While preparing for a storm when elevated, the total weight of the COASTAL DRILLER is 14,150 kips. LM are 1,712,150 ft-kips, and TM are -9,905 ft-kips. The port leg reaction is _______________.#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 _______________.#4495 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 _______________.#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?