Aircraft Structures and Materials Flashcards
7 cards from real AMT 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 Structures and Materials flashcards as text
What does 'corrosion inhibiting compound' (CIC) do when applied inside aircraft structure?
Answer: It seals the metal surface to exclude moisture and oxygen, preventing future corrosion
Corrosion inhibiting compounds coat internal metal surfaces to exclude moisture and oxygen, preventing corrosion from initiating.
Which wing construction method uses a thick honeycomb sandwich panel as the primary structural element instead of spars and ribs?
Answer: Full-depth honeycomb sandwich construction
Full-depth honeycomb sandwich construction uses honeycomb core bonded between face sheets as the primary structure, eliminating traditional spars and ribs.
What is the 'damage tolerance' design philosophy in aircraft structures?
Answer: The structure is designed to sustain defined damage while retaining adequate residual strength until repair
Damage tolerance design ensures the structure retains adequate residual strength after sustaining specified damage, allowing safe operation until inspection and repair.
What is 'springback' in sheet metal forming, and how is it compensated?
Answer: Elastic recovery after bending; compensated by overbending beyond the desired angle
Springback is the elastic recovery of metal after the bending force is removed; it is compensated by intentionally overbending past the required angle.
What type of weld joint is formed when two pieces of metal are placed edge-to-edge in the same plane and welded along their adjoining edges?
Answer: Butt joint
A butt joint joins two pieces end-to-end in the same plane; it is the most common joint for structural welding in aircraft.
Which type of load causes a beam to curve or deflect when applied perpendicular to its longitudinal axis?
Answer: Bending load
A bending load (moment) causes a structural beam to curve or deflect transversely, inducing tension on one side and compression on the other.
What is the significance of 'grain direction' when cutting and forming structural aluminum sheet metal parts?
Answer: Bends made parallel to the grain are stronger; bends across the grain risk cracking
Aluminum sheet metal is strongest when bent perpendicular to the grain direction; bending parallel to the grain can cause cracking.