Question

which hydraulic system component actually performs work?

• the reservoir with strainer
• the hydraulic pump
• the control valve
• the hydraulic actuator

Explanation:

• The reservoir with strainer stores and filters fluid, not perform work.
• The hydraulic pump generates fluid flow/pressure, not direct work.
• The control valve regulates flow/pressure direction, not work.
• The hydraulic actuator (like cylinders/motors) converts hydraulic energy to mechanical work (e.g., moving loads), so it performs work.

Answer:

D. The hydraulic actuator