MCC-NH Gas Fitters Practice Exam

Which is a requirement for a shutoff valve to be considered readily accessible?

1. It must be labeled

2. It should be visible from the ceiling

3. It must not be covered by any material

4. It should be near the entrance

The correct answer is: It must not be covered by any material

For a shutoff valve to be considered readily accessible, it is essential that it must not be covered by any material. This ensures that the valve can be quickly and easily identified and operated in case of an emergency or when maintenance is required. In practical applications, accessibility means that there are no obstructions—such as walls, furniture, or insulation—preventing a person from reaching the valve. This is critical for safety, as prompt access to shutoff valves can prevent gas leaks and mitigate hazards. While other options may seem beneficial—like visibility from the ceiling or being labeled—the primary focus of accessibility in safety codes emphasizes the physical ability to reach and operate the valve without impediments. Thus, ensuring that the shutoff valve is clear and not concealed is the fundamental requirement for it to be classified as readily accessible.