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 structural function of an aircraft's longerons?
Answer: Carry primary bending loads along the length of the fuselage
Longerons are primary longitudinal structural members that carry bending loads along the fuselage length.
In an oleo-pneumatic landing gear strut, which two fluids are typically used?
Answer: Hydraulic fluid and nitrogen
Oleo struts use hydraulic fluid to dampen shock loads and nitrogen (or air) as a compressible medium to absorb landing energy.
What does the term 'dihedral' refer to in aircraft wing design?
Answer: The upward angle of the wings relative to the horizontal
Dihedral is the upward angle of the wings from the root to the tip when viewed from the front, which improves lateral stability.
Which type of rivet is NOT suitable for use in aircraft structural applications?
Answer: Pop (blind) rivet in primary structure
Pop (blind) rivets are not approved for use in primary structural applications because they do not provide the same strength as solid shank rivets.
What is the purpose of a fire sleeve on aircraft tubing?
Answer: Provide fire-resistant protection for fluid-carrying lines
Fire sleeves are installed over fluid-carrying lines in engine compartments to protect them from flame and heat in the event of a fire.
When inspecting a control surface for freedom of movement, a technician notes binding. What is the FIRST corrective step?
Answer: Identify and remove the source of binding before flight
Binding in a control surface is a flight safety issue; the source must be identified and corrected before the aircraft is released for flight.
Which material is most commonly used for aircraft firewall construction?
Answer: Stainless steel or titanium
Firewalls are constructed of stainless steel or titanium because these materials resist high temperatures and open flame better than aluminum or composites.