Final answer:
All Navy ships have three material conditions of readiness, namely X-ray, Yoke, and Zebra, providing varying levels of protection depending on the threat scenario.
Step-by-step explanation:
All Navy ships have three material conditions of readiness. These conditions are designed to provide different levels of protection for the ship and its crew from potential damage in various scenarios. The three material conditions of the readiness are:
- X-ray: The least restrictive condition, used during normal peacetime operations.
- Yoke: An intermediate level of readiness, which may be set during a heightened threat.
- Zebra: The highest state of readiness, typically set during general quarters or when the ship is likely to enter combat.
These conditions regulate the level of watertight integrity and general readiness of a ship's fittings, doors, hatches, and other equipment necessary for the ship's survivability.