Engine: Retired questions · General Subjects

1. A Oil pressure to both sides of the actuator will be equal as the pump discharge flow is directed across the relief valve.
2. B A pressure differential will exist between the two ends of the actuator, with pump discharge lower than normal due to flow across the unloading valve.
3. C The oil pressure will equalize at both ends of the actuator and the pump will discharge through the reducing valve to the sump.
4. D The load on the actuator may cause a difference in pressure to exist between the rod and cap end, and oil discharging to the sump across the relief valve with the pump operating.

Tip: press A-D to answer