Aircraft Systems & Components Flashcards
7 cards from real Airframe Mechanic Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Aircraft Systems & Components flashcards as text
What is the primary purpose of an aircraft's spoiler system?
Answer: Reduce lift and increase drag during descent
Spoilers disrupt airflow over the wing to reduce lift and increase drag, allowing steeper descents without increasing airspeed.
Which component in a hydraulic system prevents pressure from exceeding a safe limit?
Answer: Relief valve
A relief valve opens automatically when system pressure exceeds a preset limit, routing fluid back to the reservoir.
What type of corrosion forms as a white powdery deposit on aluminum aircraft structures?
Answer: Oxidation corrosion
Oxidation corrosion on aluminum produces aluminum oxide, which appears as a white or gray powdery surface deposit.
In a fuel system, what is the function of a boost pump?
Answer: Maintain positive fuel pressure to the engine-driven pump
Boost pumps provide positive fuel pressure to prevent cavitation in the engine-driven pump, especially during high-altitude operations.
What is the purpose of a Zerk fitting on an aircraft landing gear component?
Answer: Provide a grease injection point for lubrication
A Zerk (grease) fitting allows technicians to inject grease into bearings and joints using a grease gun without disassembly.
Which aircraft wing design feature increases the critical angle of attack before stall?
Answer: Leading edge slat
Leading edge slats extend the wing's leading edge, increasing camber and allowing the wing to operate at a higher angle of attack before stalling.
When performing a continuity check on a control cable system, a technician finds an open circuit. What does this most likely indicate?
Answer: A broken or disconnected cable
An open circuit in a cable system continuity check indicates the electrical path is broken, most commonly due to a broken or disconnected wire or cable.