Question 4465Deck General70% to pass
In storm conditions, when the DEEP DRILLER is in 600 feet water depth, and the high-line tension (HLT) is 350 kips, completely slacking the two leeward mooring line tensions reduces the HLT to _______________.
AI Explanation
The correct answer is B) 275 kips.
In storm conditions, when the DEEP DRILLER is in 600 feet of water depth and the high-line tension (HLT) is 350 kips, completely slacking the two leeward mooring line tensions will reduce the HLT to 275 kips. This is because reducing the leeward mooring line tensions will decrease the overall restoring forces acting on the vessel, resulting in a lower HLT.
The other options are incorrect because: A) 375 kips is too high, as slacking the leeward mooring lines should reduce the HLT; C) 245 kips and D) 220 kips are too low, as the HLT should not be reduced by that much when only the leeward mooring line tensions are slacked.
Related Questions
#4463 For a semisubmersible moored in heavy weather conditions, the weather lines should be adjusted so that several lines carry about the same tension, and the leeward lines are _______________.#4464 When clear ice is present while drilling, the vertical transverse moments of the DEEP DRILLER are increased by _______________.#4466 In storm conditions, with the wind and waves from the starboard bow of the DEEP DRILLER in 400 feet water depth, the offset is 7%. Completely slacking mooring lines 7 and 8 reduces the offset to _______________.#4467 In storm conditions in 600 feet of water, completely slacking the leeward mooring line of the DEEP DRILLER reduces the tension in that line to about _______________.#4468 In storm conditions, with the wind and waves from the port bow of the DEEP DRILLER in 400 feet water depth, the tensions in mooring lines 1 and 2 are 400 kips. Completely slacking the mooring lines 5 and 6 reduces the tension in mooring lines 1 and 2 to about _______________.