FREE A&P Sheet Metal Structural Repair Questions and Answers

Question 1

During a visual inspection of a fuselage, a technician notices fine black streaks trailing back from several rivet heads.
This phenomenon, commonly referred to as 'smoking,' is a primary indicator of which of the following conditions?

Accepted Answer

Fretting corrosion caused by slight movement of a loose rivet.

Answer

Galvanic corrosion between the rivet and the skin material.

Answer

Overheating of the rivet during installation.

Answer

Improper application of primer around the rivet head.

Question 2

A maintenance technician discovers a small crack propagating from a rivet hole in an aluminum alloy skin panel. According to standard repair practices, what is the immediate and primary action to be taken to prevent further propagation before a permanent repair is made?

Accepted Answer

Stop-drill the end of the crack.

Answer

Weld the crack closed using an approved procedure.

Answer

Replace the entire skin panel immediately.

Answer

Apply a doubler patch over the entire area.

Question 3

Which of the following solid shank rivets, known as an 'icebox' rivet, must be heat-treated and then stored at low temperatures until it is driven to prevent age hardening?

Accepted Answer

2024-T4 (DD)

Answer

2117-T3 (AD)

Answer

5056-H32 (B)

Answer

1100-F (A)

Question 4

An A&P technician is laying out a repair pattern on a piece of 2024-T3 aluminum alloy sheet. To avoid creating potential points of failure, which of the following is the most appropriate tool for marking cut lines that will remain on the finished part?

Accepted Answer

A graphite pencil or a permanent marker.

Answer

A fine-tipped carbide scribe.

Answer

A steel awl.

Answer

A ballpoint pen.

Question 5

In a sheet metal repair, what is the term for the distance between the centers of adjacent rivets in the same row?

Accepted Answer

Rivet Pitch

Answer

Edge Distance

Answer

Transverse Pitch

Answer

Rivet Gauge

Question 6

When forming a piece of sheet metal to a specific angle, what is the primary purpose of calculating the bend allowance?

Accepted Answer

To calculate the total developed length (flat pattern) of the material needed for the part.

Answer

To determine the minimum bend radius to prevent cracking.

Answer

To find the amount of springback that will occur after the bend is made.

Answer

To establish the proper setback for the bend tangent lines.

During a visual inspection of a fuselage, a technician notices fine black streaks trailing back from several rivet heads.This phenomenon, commonly referred to as 'smoking,' is a primary indicator of which of the following conditions?

During a visual inspection of a fuselage, a technician notices fine black streaks trailing back from several rivet heads.
This phenomenon, commonly referred to as 'smoking,' is a primary indicator of which of the following conditions?