Emergency extension of the Nose landing gear is accomplished by which system?

• A. Auxiliary hydraulic system
• B. Electrical hydraulic system
• C. Mechanical system
• D. Pneumatic system

Answer: (A)

Emergency extension relies on a separate hydraulic power path beyond the main system. The nose landing gear uses hydraulic force to extend and lock, so having an auxiliary hydraulic system dedicated to emergencies ensures the gear can deploy even if the primary hydraulic circuit is unavailable. This auxiliary system has its own pump and reservoir and is activated by the emergency extension mechanism to route fluid to the nose gear actuators and doors, providing a reliable extension path when needed. The other options don’t fit the typical backup design: an electrical-hydraulic setup would imply powering the hydraulic pump from electrical sources rather than a dedicated emergency circuit; a pneumatic system uses air pressure not normally used for nose gear extension; and a mechanical/manual method would be impractical for rapid, reliable deployment on modern aircraft.