AMT Airframe Systems & Components 2

Question 1

What type of corrosion appears as a white or gray powdery deposit on aluminum aircraft surfaces?

Accepted Answer

Surface oxidation corrosion

Answer

Surface oxidation on aluminum produces a white or gray powdery aluminum oxide deposit on the metal's surface.

Question 2

In a hydraulic system, what is the purpose of a hydraulic fuse?

Accepted Answer

To automatically shut off flow if a downstream rupture occurs

Answer

A hydraulic fuse automatically closes to stop fluid flow when it detects a flow rate that indicates a line rupture downstream.

Question 3

Which type of aircraft skin joint allows thermal expansion while maintaining structural integrity?

Accepted Answer

Joggle joint

Answer

A joggle joint offsets one piece of skin to allow overlap without creating a raised seam, accommodating thermal expansion.

Question 4

What is the minimum bend radius requirement primarily intended to prevent in sheet metal work?

Accepted Answer

Cracking on the outside of the bend

Answer

Minimum bend radius prevents tensile cracking on the outer surface of the bend where metal is stretched most severely.

Question 5

An aircraft's angle of incidence is defined as the angle between the wing chord line and the:

Accepted Answer

Longitudinal axis of the fuselage

Answer

Angle of incidence is the fixed angle between the wing chord line and the aircraft's longitudinal axis, built into the airframe.

(AMT) Aviation Maintenance Technician Practice Test