Your vessel is being towed and back-up wires have been installed. Back-up wires carry the towing load in the event that the __________.

Correct Answer: Option A — towing bitt or pad eye fails

Back-up wires are specifically rigged to take the load if the primary towing bitt or pad eye fails. By connecting to a secondary, independent structural point on the towed vessel, they prevent the tow from breaking free, which is a critical safety requirement for ocean towing and heavy-weather operations.