What is required for both valve stems and caps?

• A. They must be missing or broken
• B. They can be damaged as long as they are functional
• C. They must not be missing, broken, or damaged
• D. They can leak if secure

Answer: (C)

For valve stems and caps, it is essential that they must not be missing, broken, or damaged. This is crucial for maintaining proper tire pressure and ensuring safe operation of the school bus. Valve stems are the components that allow for inflation of the tires, and caps serve to protect the valves from debris, moisture, and potential leaks. If either component is compromised in any way, it could lead to air loss from the tires, potentially causing unsafe driving conditions. Ensuring that both the valve stems and caps are intact supports optimal tire performance and safety, which is a key part of the pre-trip inspection process.