What information can be found on a hydraulic data nameplate?

The hydraulic data nameplate is a critical component often found on fire suppression systems and other hydraulic equipment. This nameplate provides essential technical details that are vital for understanding how the system is designed to operate effectively in an emergency situation.

The correct answer highlights that the hydraulic data nameplate includes information on hazard classification, design density, and the necessary gallons per minute (GPM) for water supply. This data is crucial for fire investigators and safety personnel because it informs them about the system's capabilities in combating different types of fires, particularly in identifying the amount of water that needs to be supplied and the density of water discharge required to effectively manage a fire in a given hazard area.

Understanding the hydraulic data is important for ensuring that fire protection systems are adequately designed to meet the specific needs of the associated hazards. Effective fire suppression relies on knowing these parameters so that systems can be tested and maintained properly, ultimately ensuring they will function as intended during a fire emergency.

The options concerning system voltage and power requirements, emergency contact numbers, or maintenance schedules serve different purposes and do not specifically relate to the hydraulic performance and operational needs that the nameplate provides. Therefore, they are not included on a hydraulic data nameplate which focuses on water supply metrics crucial for fire safety.