Which statement best describes actuators/motors in a hydraulic system?

• A. Devices for using the power transmitted through the fluid.
• B. They generate hydraulic pressure directly.
• C. They store hydraulic energy.
• D. They rely on electricity to operate.

Answer: (A)

Actuators and motors in a hydraulic system are devices that use the power carried by the fluid to do work. The fluid’s pressure and flow push pistons or drive hydraulic motors to produce linear or rotary motion. They don’t generate hydraulic pressure—the pump does that—and they don’t store hydraulic energy—that’s what an accumulator does. Electricity may power the pump, but the actuator itself operates on hydraulic power, not directly on electricity. That’s why this description best fits actuators/motors in a hydraulic system.