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

Tensile stress acts perpendicular to a cross-section and tends to elongate or pull apart the material.

Question 2

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

Accepted Answer

Longerons and stringers

Answer

Longerons and stringers run longitudinally and are the primary members resisting bending loads in a semi-monocoque structure.

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

Weep holes allow accumulated moisture to drain from structural cavities, preventing corrosion buildup.

Question 4

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

Accepted Answer

Ultrasonic inspection

Answer

Ultrasonic inspection uses high-frequency sound waves that reflect off internal defects like delamination in composite structures.

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

A false rib (or nose rib/auxiliary rib) spans only the leading edge area and helps maintain airfoil contour between full-depth ribs.

(AMT) Aviation Maintenance Technician Practice Test