Planned maintenance procedures are important to maintaining the operating condition of equipment. Your vessel is a single screw vessel. How often should you exam your vessel's tail shaft in order to be in compliance with Coast Guard periodic testing and inspection regulations?
Official USCG Answer & Rule Citation
Correct Answer: Option D — At least twice within any 5 year period.
Title 46 CFR regulations for single-screw vessels require tail shaft examinations to be conducted at least twice within any five-year inspection period to ensure structural integrity.
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