Airframe Structures 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 Airframe Structures flashcards as text
What term describes the gradual reduction in wing thickness and/or chord from root to tip?
Answer: Taper
Taper refers to the reduction in wing chord and/or thickness from the root to the tip to improve aerodynamic efficiency.
A 100% visual inspection of a welded aircraft steel tube fuselage should include checking for:
Answer: Cracks, dents, and evidence of overheating in the heat-affected zone
Welded steel tube structures must be inspected for cracks, dents, and heat-affected zone discoloration that may indicate weld failures or structural compromise.
What is the correct term for the angle between the wing chord line and the longitudinal axis of the aircraft?
Answer: Angle of incidence
The angle of incidence is the fixed angle at which the wing is mounted relative to the aircraft's longitudinal axis.
In the damage tolerance design philosophy, what is the primary goal regarding structural cracks?
Answer: Ensure cracks grow slowly enough to be detected before failure
Damage tolerance design ensures that if cracks form, they propagate slowly enough to be found during scheduled inspections before causing catastrophic failure.
What is the primary structural function of a honeycomb core in a sandwich composite panel?
Answer: Provide shear rigidity and separate the face sheets
The honeycomb core resists shear forces and maintains separation between the face sheets, greatly increasing panel stiffness with minimal weight.
Which rivet material is typically used to join magnesium alloy aircraft structures?
Answer: 5056 aluminum alloy
5056 aluminum alloy rivets are used with magnesium structures because their galvanic potential is closest to magnesium, minimizing corrosion.
What does the term "fail-safe" mean in aircraft structural design?
Answer: Multiple load paths exist so failure of one member does not cause total structural failure
Fail-safe design provides redundant load paths so that if one structural element fails, adjacent members can carry the load without catastrophic collapse.