How do safety relief valves and system piping work together to prevent overpressure?

• A. Safety relief valves relieve excess pressure to a safe path; proper piping ensures vented fluid has a safe discharge and does not back-pressure the source.
• B. Safety relief valves regulate boiler temperature.
• C. Piping has no effect on relief valve operation.
• D. Relief valves are only for emergency shutdown.

Answer: (A)