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 __________.
Official USCG Answer & Rule Citation
Correct Answer: Option A — ballast tanks equalizing into tank 1P
Slowly increasing inclinations in calm conditions typically stem from internal liquid shifts like ballast water equalizing into tank 1P. Free communication and uncontrolled cross-flooding create gradual weight shifts, unlike sudden external force failures.
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