Corrosion Protection

Iron rust in the presence of:

• Vacuum
• Moisture
• Oxygen
• Moisture and Oxygen

Is this an example of corrosion?

• Yes
• No

What is corrosion?

• The release of oxygen
• Breakdown of a metal

To protect iron against corrosion, the most durable metal plating on it, is:

• Zinc plating
• Nickel plating

Which of these is applied at the steel mill to provide corrosion protection

• Aluminum
• Zinc
• Phosphate
• Copper

An example of a corrosive hot spot is an area

• with excessive paint film build
• where corrosion protection has been re-applied
• where the finish has been broken.
• with excessive clearcoat.

Galvanizing is a process of:

• Applying a Zinc coating to bear steel
• Washing the body with the phosphate coating
• dipping a body in E-COAT
• Chemically etching primer to steel

At what stage in the vehicle build process are most of the seam sealers applied?

• Before E-Coat
• After E-Coat
• After Basecoat
• After Clearcoat

Technician A says that not restoring corrosion protection could result in a repair comeback.Technician B says that not restoring corrosion protection could result in failure of the vehicle structure.Who is right?

• Tech A
• Tech B
• Both
• Neither

Why is it usually necessary to address corrosion protection on the backside of a paint less dent repair?

• The heat that is used
• The repeated scratching with the dent tool tips
• The holes that are drilled
• The hammering action on the front side