Career Enlisted Aviator (CEA) Fundamentals Block 5 Practice Test

The hydraulic system uses pressurized fluid to transmit force and multiply input, allowing small, precise moves to produce large, reliable motions at high-load components. This is essential for operating flight controls, landing gear, and other systems that must move quickly and with substantial force, even under heavy loads or low speeds. The fluid’s incompressibility and the ability to place actuators where space and weight allow make hydraulics ideal for smooth, powerful actuation across multiple aircraft systems. Cabin temperature and humidity are handled by the environmental control system, not hydraulics. Converting mechanical energy to electrical power is the job of generators within the electrical power system. Feeding fuel to the engines is done by the aircraft’s fuel system.