Which system provides power for the emergency extension of the Nose landing gear?

• A. Electrical System
• B. Auxiliary Hydraulic System
• C. Pneumatic System
• D. Fuel System

Answer: (B)

Emergency extension of the nose landing gear relies on hydraulic pressure to move and lock the gear. In flight, a dedicated backup source is used so that gear can extend even if the main hydraulic system fails. The auxiliary hydraulic system provides that independent pressure, usually with its own pump or stored pressure in an accumulator. When an emergency extension is initiated, a valve routes pressure from this auxiliary source to the nose gear actuators, enabling full extension and locking without dependence on the primary system. Electrical, pneumatic, or fuel systems don’t supply the necessary independent hydraulic force for this function, and they aren’t arranged to guarantee gear extension in an emergency.