The secondary flight controls are controlled and operated in which manner?

• A. Electromechanically
• B. Hydraulically
• C. Electrically
• D. Aerodynamically

Answer: (A)

The idea being tested is how secondary flight controls are moved. They are actuated electromechanically, meaning electric power drives motors that move a surface through a mechanical linkage. This setup allows the flight-control computers to command surface positions with electrical signals, giving precise, responsive control while avoiding reliance on hydraulic power for these surfaces. The motion is produced by converting electrical energy into mechanical motion via the actuator and linkage, which is different from using fluid pressure (hydraulics) or relying on aerodynamic forces alone. In practice, this arrangement fits well with modern electronically controlled flight-control systems and can simplify maintenance and integration for secondary surfaces such as trims, some spoilers, and other non-primary surfaces.