Question 5091Deck General70% to pass
After jacking down your liftboat you have an unexpected list. You find that the only cause of this list must be a flooded leg. The list caused by a flooded leg means your vessel has a(n) _______________.
AI Explanation
The correct answer is C) decrease in the GZ (righting arm).
When a liftboat has a flooded leg, it causes the vessel to list, which results in a decrease in the righting arm (GZ). The righting arm is a measure of the vessel's ability to right itself and resist heeling or capsizing. A decrease in the GZ means the vessel has less stability and a reduced ability to return to an upright position, which is a dangerous condition.
The other answer choices are incorrect because:
A) An increase in the waterplane and metacentric height would actually increase the vessel's stability, not decrease it.
B) A negative metacentric height (GM) would mean the vessel is in a state of instability, which is not the specific condition described in the question.
D) A flooded leg would increase the chance of deck edge immersion, not decrease it.
Related Questions
#5089 Among the possible causes of unexpected rapidly increasing inclination of the DEEP DRILLER while on location is _______________.#5090 While drilling loaded as shown in Sample Load Form Number 4 (Drilling), the DEEP DRILLER suffers an unexpected but slowly increasing starboard and forward inclination. The wind and waves are light. This inclination could have been caused by _______________.#5092 Among the possible causes of unexpected rapid increasing inclination of the floating COASTAL DRILLER is _______________.#5093 After jacking down your liftboat you have an unexpected list. You find that the only cause of this list must be a flooded leg. Your next course of action should be to _______________.#5094 While drilling loaded as shown in Sample Load Form Number 4 (Drilling), the DEEP DRILLER suffers an unexpected but slowly increasing port and forward inclination. The wind and waves are light. This inclination could have been caused by _______________.