Final answer:
The Audit of the tag-out log is usually conducted every week by the Engineering Duty Officer while in port to ensure all safety protocols are followed correctly.
Step-by-step explanation:
The question pertains to the frequency at which the Audit of the tag-out log is conducted by the Engineering Duty Officer while a ship is in port. While specific procedures may vary by organization or the branch of military service, the U.S. Navy's standard practice, for instance, is that the Engineering Duty Officer should conduct an audit of the tag-out log every week when in port. The tag-out log is a critical component of ship safety protocols, ensuring that equipment is properly marked and isolated for maintenance or repairs to prevent accidental operation. The regular audit serves as a check to ensure that all tags are correctly logged and that the associated equipment is in the expected state of operation or non-operation.