Final answer:
The normal working pressure for a hospital oxygen piping system is usually between 50-60 psi to ensure safe and efficient oxygen delivery.
Step-by-step explanation:
The normal working pressure for a hospital oxygen piping system is typically set within the range of 50-60 psi (option a). This pressure range ensures that there is sufficient force to deliver oxygen through the system to the various outlets and terminals in the hospital, while also maintaining safety and functionality for medical equipment and patient care applications.
Understanding the proper operation of these systems is crucial not only for the engineering and maintenance of hospital infrastructure but also for ensuring the safety and care of patients who require medical oxygen for treatment.