Which two methods can be used to determine discharge pressure for a sprinkler system?

Determining the discharge pressure for a sprinkler system is crucial for ensuring proper function and safety during firefighting operations. Checking the pre-incident plan and fire department connection plate is a reliable method because these resources typically provide necessary information about pressure requirements and system specifications.

The pre-incident plan may include details about the specific sprinkler system, which can inform the operator about the setup and expected performance under various conditions. The fire department connection plate usually indicates the system's design pressure and other relevant characteristics, allowing firefighters to verify that the system will operate effectively when needed.

This method ensures that operators are equipped with the right information tailored to the architectural and operational features of the specific building, allowing them to make informed decisions in emergencies. Other methods, while useful in different contexts, do not directly provide the same targeted information about discharge pressure for a sprinkler system.