North Carolina Home Inspector Practice Exam

In a low-pressure stream system, what is the normal operating pressure range?

1. 0-4 psi

2. 4-8 psi

3. 8-12 psi

4. 12-16 psi

The correct answer is: 8-12 psi

In a low-pressure stream system, the normal operating pressure range is typically established based on the needs of the system and the characteristics of the fluid being transported. The correct range of 8-12 psi indicates optimal conditions for low-pressure steam systems, ensuring that steam can be effectively generated and distributed without excessive risk of pressure drops or system inefficiencies. Operating within this range allows for adequate steam quality and helps maintain the system’s efficiency while preventing issues related to superheating or condensation that can arise at lower pressures. Systems below this range may encounter challenges producing sufficient steam, while those exceeding it can lead to mechanical stresses or safety concerns. The values outside the 8-12 psi range may either fall short of what is necessary for the steam system's proper functioning or create potential risks that are often mitigated within this target range. Therefore, understanding and adhering to the 8-12 psi specification is crucial for optimal operation in low-pressure steam applications.