Which system is primarily responsible for delivering fuel to the engines?

Which system is primarily responsible for delivering fuel to the engines?

• A. Fuel System
• B. Landing Gear System
• C. Pressurization System
• D. Ice Protection System

Answer: (A)

Delivering fuel to the engines is the job of the Fuel System. This system stores fuel in the aircraft’s tanks, uses pumps (electric boost pumps and engine-driven pumps) to push fuel through lines, and directs it to the engine fuel control unit. The engine control meters the fuel flow to the injectors or nozzles based on throttle/FADEC input, ensuring the engines receive the right amount at the right pressure for any flight condition. Cross-feed valves and return lines may help move fuel between tanks and manage temperature, but the core purpose remains delivering fuel to the engines. The other systems don’t handle fuel delivery to engines: landing gear operates the wheels and retraction mechanism, pressurization maintains cabin pressure, and the ice protection system prevents ice buildup.

Delivering fuel to the engines is the job of the Fuel System. This system stores fuel in the aircraft’s tanks, uses pumps (electric boost pumps and engine-driven pumps) to push fuel through lines, and directs it to the engine fuel control unit. The engine control meters the fuel flow to the injectors or nozzles based on throttle/FADEC input, ensuring the engines receive the right amount at the right pressure for any flight condition. Cross-feed valves and return lines may help move fuel between tanks and manage temperature, but the core purpose remains delivering fuel to the engines.

The other systems don’t handle fuel delivery to engines: landing gear operates the wheels and retraction mechanism, pressurization maintains cabin pressure, and the ice protection system prevents ice buildup.