Which option best describes the role of fuel crossfeed in flight?

Which option best describes the role of fuel crossfeed in flight?

• A. Pneumatic systems only
• B. Navigation radios
• C. Electrical, hydraulic, pneumatic, and environmental control systems
• D. Flight control laws only

Answer: (C)

Fuel crossfeed is about moving fuel between wing tanks so each engine can be fed from either side. Because engines power not only thrust but also electrical generation, hydraulic pumps, and bleed air for the environmental control system, keeping a functional crossfeed helps ensure these systems have a reliable fuel supply and power. In other words, crossfeed supports the operation of electrical, hydraulic, pneumatic, and environmental control systems, not just one part of the airplane. Navigation radios and flight control laws aren’t the direct focus of crossfeed, and it isn’t limited to pneumatic action alone.

Fuel crossfeed is about moving fuel between wing tanks so each engine can be fed from either side. Because engines power not only thrust but also electrical generation, hydraulic pumps, and bleed air for the environmental control system, keeping a functional crossfeed helps ensure these systems have a reliable fuel supply and power. In other words, crossfeed supports the operation of electrical, hydraulic, pneumatic, and environmental control systems, not just one part of the airplane. Navigation radios and flight control laws aren’t the direct focus of crossfeed, and it isn’t limited to pneumatic action alone.