Airframe Structures and LoadsAircraft & Engines — DGCA CPL practice questions
Question 1 of 5
Components designed to resist tension are called:
All 5 questions — Airframe Structures and Loads
Aircraft & Engines · DGCA CPL. The correct option is marked on each.
Q1. Components designed to resist tension are called:
- A.Struts
- B.Ties✓
- C.Webs
- D.Frames
Why: Ties take tension; struts take compression. Riveted joints chiefly resist shear.
Q2. The Design Ultimate Load is the Design Limit Load multiplied by a safety factor of typically:
- A.1.1
- B.1.25
- C.1.5✓
- D.3.0
Why: DUL = DLL × 1.5; the structure must withstand DUL without catastrophic failure.
Q3. The design philosophy that assumes cracks will occur and ensures they grow slowly enough to be found at inspections is:
- A.Safe life
- B.Fail-safe
- C.Damage tolerant✓
- D.Monocoque
Why: Damage-tolerant design accepts that damage happens and manages its growth; safe-life retires parts early; fail-safe uses redundant load paths.
Q4. In semi-monocoque construction, the members running lengthwise to stiffen the skin are:
- A.Formers
- B.Bulkheads
- C.Stringers✓
- D.Ribs
Why: Formers/frames give shape, bulkheads add major strength, and stringers run lengthwise preventing skin buckling.
Q5. The primary structural component of a modern cantilever wing is the:
- A.Leading edge
- B.Torsion box formed by spars, ribs, stringers and skin✓
- C.Winglet
- D.Flap track
Why: The torsion (wing) box between front and rear spars resists the wing's bending and twisting loads.