Which statement about the nominal hydraulic pressure is true?

• A. Each system is pressurized to 2500 PSI
• B. Each system is pressurized to 3000 PSI
• C. Each system is pressurized to 3500 PSI
• D. Pressure varies by system

Answer: (B)

Nominal hydraulic pressure is the designed, reference pressure used to describe normal operation of the system. It serves as the standard value for pumps, components, and gauges. In this context, the fixed reference pressure for the hydraulic systems is 3000 psi, so stating that each system is pressurized to 3000 psi best matches what “nominal” means here. Keep in mind that actual pressures can vary in operation due to pump speed, system demand, and temperature, but the nominal value provides the consistent baseline used for design and specification. The idea that pressure varies by system reflects real-world variation, not the reference value described by nominal hydraulic pressure.