Question 5085Deck 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. To keep adequate stability you should _______________.
AI Explanation
The correct answer is C) jack back up and ballast the vessel's high side as necessary.
The reasoning behind this is that when a liftboat experiences an unexpected list due to a flooded leg, the priority should be to restore the vessel's stability and prevent further loss of stability. Jacking back up the vessel and ballasting the high side will help re-establish the vessel's upright position and adequate stability. This is the safest and most appropriate course of action in this scenario.
The other options are incorrect because: A) Proceeding with all legs half-raised may further compromise stability; B) Pumping out all ballast could actually decrease reserve buoyancy and make the situation worse; and D) Getting underway with the flooded leg only half-raised could lead to an unstable and potentially dangerous situation.
Related Questions
#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 _______________.#5084 The DEEP DRILLER is loaded as shown in the Sample Load Form Number 5 (Survival) when an unexpected slowly increasing starboard list and bow down trim occurs. A leak in 1S is found. By deballasting from ballast tanks 2S and 3S, the inclination slowly decreases. The increase in the transverse free surface corrections is _______________.#5086 If a MODU takes a sudden severe list or trim from an unknown cause, you should FIRST _______________.#5087 The DEEP DRILLER is loaded as shown in the Sample Load Form Number 5 (Survival) when an unexpected slowly increasing starboard list and bow down trim occurs. A leak in 1S is found. By deballasting from ballast tanks 2S and 3S, the inclination slowly decreases. The increase in the longitudinal free surface correction is _______________.#5088 After jacking down your liftboat you have an unexpected list. You find that the only cause of this list must be a flooded leg. Raising the flooded leg further would adversely affect the boats stability by _______________.