In many cases, the steering actuators serve as the ______ because they are constantly charged with hydraulic fluid under pressure.

• A. Brakes
• B. Hydraulic reservoirs
• C. Steering dampers
• D. Indicator lights

Answer: (C)

Steering actuators are hydraulic cylinders that convert pressurized fluid into linear motion to steer the nose gear. Because they are constantly filled with hydraulic fluid under pressure, the fluid flow within the actuator provides a resisting, energy-dissipating action as the piston moves. This damping effect smooths out rapid or irregular steering inputs and helps prevent nose-wheel shimmy, so the actuator effectively also functions as a steering damper. The other options don’t fit because brakes are a separate system for slowing wheels, hydraulic reservoirs store fluid but aren’t actively providing damping, and indicator lights are electrical indicators with no hydraulic function.