AMT Airframe Structures 2

Question 1

What type of stress acts perpendicular to the cross-section of a structural member and tends to pull it apart?

Accepted Answer

Tensile stress

Answer

Shear stress

Answer

Torsional stress

Answer

Compressive stress

Question 2

In a semi-monocoque fuselage, which structural members primarily carry bending loads along the fuselage length?

Accepted Answer

Longerons and stringers

Answer

Frames and formers

Answer

Skin panels

Answer

Bulkheads

Question 3

What is the purpose of a "weep hole" in an aircraft wing structure?

Accepted Answer

To allow moisture drainage and prevent corrosion

Answer

To reduce aerodynamic drag

Answer

To provide access for fuel line routing

Answer

To vent fuel tank pressure

Question 4

When inspecting a composite structure for delamination, which non-destructive testing method uses sound wave reflections?

Accepted Answer

Ultrasonic inspection

Answer

Eddy current inspection

Answer

Magnetic particle inspection

Answer

Dye penetrant inspection

Question 5

A wing rib that does NOT extend the full depth of the wing and is used to maintain airfoil shape between main ribs is called a:

Accepted Answer

False rib

Answer

Main rib

Answer

Compression rib

Answer

Drag rib

Question 6

Which aircraft skin fastening method creates the strongest and most permanent structural joint?

Accepted Answer

Rivets

Answer

Sheet metal screws

Answer

Hi-Lok fasteners

Answer

Bonding with structural adhesive

Question 7

What structural component transfers wing bending loads into the fuselage at the wing root?

Accepted Answer

Wing spar carry-through

Answer

Drag strut

Answer

Empennage attach fitting

Answer

Aileron bellcrank