Question 411General Subjects - 1st Asst/Chief70% to pass
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?
AI Explanation
The correct answer is D) At least twice within any 5 year period.
The reasoning behind this is that the Coast Guard regulations require the tail shaft of a single screw vessel to be examined at least twice within any 5 year period. This is outlined in 46 CFR 61.10-5, which states that the tail shaft must be examined at intervals not exceeding 3 years. Therefore, to be in compliance, the vessel must undergo tail shaft examination at least twice (minimum) within any 5 year period.
The other options are incorrect because A) is less frequent than the required minimum of twice in 5 years, B) is only once in 5 years which does not meet the twice in 5 years requirement, and C) is too frequent as the regulations do not mandate annual tail shaft examinations for this type of vessel.
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