AMT Airframe Structures 4

Question 1

When repairing aircraft skin using a flush patch, the rivet pattern must maintain what minimum edge distance from the rivet centerline to the edge of the patch?

Accepted Answer

2 times the rivet diameter

Answer

The minimum edge distance for aircraft rivets is 2D (two times the rivet diameter) measured from the rivet centerline to the nearest edge.

Question 2

An aircraft's empennage provides what primary function?

Accepted Answer

Provides stability and control in pitch and yaw

Answer

The empennage (tail assembly) provides longitudinal (pitch) and directional (yaw) stability and control through the horizontal and vertical stabilizers.

Question 3

What is the purpose of an anti-icing "hot section" inside a wing leading edge?

Accepted Answer

Prevent ice formation by heating the leading edge surface

Answer

Leading-edge anti-icing systems use heated bleed air or electrical elements to prevent ice from forming on the wing's leading edge during flight.

Question 4

Which type of corrosion creates a network of cracks along grain boundaries in high-strength aluminum alloys under sustained tensile stress?

Accepted Answer

Stress corrosion cracking

Answer

Stress corrosion cracking (SCC) occurs when tensile stress and a corrosive environment combine to produce cracks that propagate along grain boundaries.

Question 5

A mechanic discovers a dent in an aluminum wing skin that does NOT crack the surface and is not near a rivet or seam. According to typical aircraft repair guidance, this damage may be considered:

Accepted Answer

Negligible if within allowable limits defined in the aircraft SRM

Answer

Small smooth dents away from structural features may fall within negligible damage limits defined in the aircraft's Structural Repair Manual (SRM).

(AMT) Aviation Maintenance Technician Practice Test

(AMT) Aviation Maintenance Technician Practice Test

AMT Airframe Structures 4