Which system is utilized when the primary aeration system fails?

The correct answer is the Ships Service Air System. This system serves as a backup to ensure that there is a reliable supply of air for various functions aboard the ship, including aeration processes. When the primary aeration system experiences a failure, the Ships Service Air System activates to maintain operational integrity and support critical systems.

This system is designed to provide air to essential services and equipment, helping to prevent disruptions. Its versatility makes it a valuable resource for managing air supply needs onboard. Understanding this system's role is crucial for maintaining operational efficiency and safety within the maritime environment.