Serial Number Restoration (Exam 4)

Question 1

What did the Gun Control Act of 1968 say about serial numbers?

Answer 1

All firearms made after 1968 must have a serial number after being 80% completed

Question 2

Where is the primary serial number?

Answer 2

Frame

Question 3

What are 3 methods for applying serial numbers?

Answer 3

1) Stamping
2) Laser etching
3) Engraving

Question 4

What are the small basic units that make up the polycrystalline structure in metals?

Answer 4

Grains

Question 5

What is elastic deformation?

Answer 5

Metal stress is eventually relieved, causing the metal to go back to original shape

Question 6

What is plastic deformation?

Answer 6

Metal stress that disrupts grains and causes metal to stay its new shape

Question 7

What does the restoration process begin with?

Answer 7

Visual exam

Question 8

What should you do to the metal after the visual exam in restoration?

Answer 8

Sand it

Question 9

After sanding, comes next in the restoration process?

Answer 9

Determining if surface is magnetic

Question 10

What should you do after determining if the surface is magnetic in restoration?

Answer 10

Chemically etch the surface