What is monocoque construction? (A) Uses internal truss (B) Uses stressed skin to carry loads (C) Uses composite only
B
What is the function of the jackscrew in the empennage?
To adjust stabilizer angle
What does the empennage include?
Rudder and stabilizers
What is the primary purpose of aircraft structural design? (A) To reduce fuel consumption ( B) To ensure stability and withstand loads (C) To increase speed
B
What distinguishes semi-monocoque construction? (A) No internal structure (B) Uses fabric skin (C) Combines skin with internal framework
C
What is the function of bulkheads?
Divide fuselage and add strength
What do struts resist?
Compression
What does fail-safe design ensure?
Multiple load paths
What is Alclad used for?
Corrosion resistance
What is the purpose of zonal identification systems? (A) To reduce weight (B) To localize parts and work areas (C) To increase lift
B
What is damage tolerance in aircraft structures? (A) Ability to fly with broken wings (B) Ability to sustain damage before losing strength (C) Ability to avoid damage
B
What is considered a secondary structure in aircraft?
Flooring
Which of the following is a primary structure component? (A) Fairings ( B) Longerons (C) Wheel shields
B
What is the safe-life design principle based on? (A) Aerodynamics (B) Fatigue analysis (C) Material cost
B
What is a twin boom configuration?
Two vertical stabilizers
What is the purpose of zonal identification systems? (A) To reduce weight (B) To localize parts and work areas (C) To increase lift
B
What does STA represent in aircraft station identification? (A) Y-axis (B) Z-axis (C) X-axis
C
Why is reinforcement used in aircraft?
To strengthen high-stress areas
What is a beam in aircraft structure?
A long member supporting heavy loads
What is the role of fabric/film in aircraft skinning?
Aerodynamic smoothness
What is a tertiary structure in aircraft design?
Fairings
What are longerons used for?
Longitudinal strength
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