ICC Commercial Mechanical Practice Exam

What is the required maximum distance for a shutoff valve from the appliance it serves?

1. 3 feet

2. 6 feet

3. 10 feet

4. 12 feet

The correct answer is: 6 feet

The correct answer is based on the guidelines set by various mechanical codes which aim to ensure safety and accessibility in commercial mechanical systems. A shutoff valve should be located within 6 feet of the appliance it serves to facilitate easy access in case of emergencies or maintenance. This distance allows for quick action to shut off the supply of gas or liquid to the appliance if needed, minimizing potential hazards. Maintaining a maximum distance of 6 feet strikes a balance between ensuring that the shutoff valve is not too far from the appliance while also allowing for some reasonable flexibility in the design of the mechanical system. Situating the valve too far from the appliance can create risks associated with emergency situations where rapid response is crucial. The other options surpassed this required maximum distance, making them unsuitable for adherence to safety codes and regulations. A distance greater than 6 feet could delay necessary actions, posing risks in case of leaks or other emergencies.