Question 5098Deck General70% to pass
While drilling loaded as shown in Sample Load Form Number 4 (Drilling), the DEEP DRILLER suffers a sudden unexpected starboard and aft inclination. The wind and waves are light. What might have caused the inclination?
AI Explanation
The correct answer is C) The drilling crew has dumped the mud.
If the DEEP DRILLER experiences a sudden unexpected starboard and aft inclination while drilling with a loaded condition as shown in Sample Load Form Number 4 (Drilling), the most likely cause would be the drilling crew dumping the mud from the mud pits. Dumping the mud would suddenly change the vessel's center of gravity and stability, leading to the observed inclination.
The other options are incorrect - mooring line failure, a broken drill string, or ballast tank equalization would not typically cause this sudden and unexpected list. The key is that the drilling operations, specifically the handling of the drilling mud, is the most probable cause of the sudden inclination.
Related Questions
#5096 While drilling loaded as shown in Sample Load Form Number 4 (Drilling), the DEEP DRILLER suffers an unexpected but slowly increasing starboard and aft inclination. The wind and waves are light. This inclination could have been caused by _______________.#5097 During counterflooding to correct a severe list or trim aggravated by an off-center load, a MODU suddenly takes a list or trim to the opposite side. You should _______________.#5099 The DEEP DRILLER is loaded as shown in the Sample Load Form #5 (Survival) when an unexpected slowly increasing port list and bow down trim occurs. A leak in C1P is found. By deballasting from ballast tanks 2P and 3P, the inclination slowly decreases. The increase in the transverse free surface correction is _______________.#5100 The DEEP DRILLER is loaded as shown in the Sample Load Form #5 (Survival), when an unexpected, slowly increasing port list and bow down trim occurs. A leak in C1P is found. By deballasting from ballast tanks 2P and 3P, the inclination slowly decreases. The increase in the longitudinal free surface correction is _______________.#5101 While drilling loaded as shown in Sample Load Form #4 (Drilling), the DEEP DRILLER suffers a sudden unexpected forward inclination. The wind and waves are light from the starboard bow. Among the possible causes, you should consider _______________.