• 1. 
    Coating of Zn, Al and Cd on steel are _________ , because their electrode potentials are lower

  • Cathodic
  • Anodic
  • Not affecting
  • Expensive
  • 2. 
    The following metals would protect iron by electrons flowing to the iron is ... .

  • Silver
  • Gold
  • Copper
  • Magnesium
  • 3. 
    Which of the following statement is TRUE regarding Anodic and Cathodic reactions?

  • Both reactions take place simultaneously
  • Both reactions take place one after another
  • Both reactions must occur at a different rate
  • Both reactions must occur at a fast rate
  • 4. 
    Is this an example of oxidation?

  • Yes
  • No
  • 5. 
    Galvanizing is a process of:

  • Applying a Zinc coating to bare steel
  • Washing the body with the phosphate coating
  • dipping a body in E-COAT
  • Chemically etching primer to steel
  • 6. 
    Technician A says that in preparation for welding, E-coat should be removed from the entire butt joint with backing insert.Technician B says that in preparation for welding, E-coat should be removed from the entire flange.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 7. 
    Technician A says that solvent-based seam sealers should be restricted from use in the passenger compartment.Technician B says that direct-to-metal seam sealers may be applied over minor corrosion.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 8. 
    Technician A says that it is generally recommended to apply undercoating to the bottom of the fuel tank.Technician B says that it is generally recommended to apply undercoating to the exhaust system.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 9. 
    Technician A says that some undercoating material is water-based.Technician B says that undercoating is applied to a muffler heat shield.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 10. 
    Technician A says that one purpose for heavy-bodied seam sealers is for vertical joints.Technician B says that one purpose of a seam sealer is to prevent fumes from entering the passenger compartment.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 11. 
    Technician A says that chip-resistant coating may be applied before the topcoat during repairs.Technician B says that chip-resistant coating may be applied over the topcoat during repairs.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 12. 
    Technician A says that OEM service parts are E-coated similar to assembly line parts.Technician B says that OEM service parts may be E-coated using an outside supplier.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 13. 
    Technician A says that acid rain is a corrosion promoter.Technician B says that heat during GMA (MIG) welding is a corrosion promoter.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 14. 
    Which of these should be done to determine if a replacement part has E-coat?

  • Sand and check for a dusty residue
  • Wipe with solvent and check for pain transfer
  • Wipe with denatured alcohol and check for paint transfer
  • Heat with a heat gun and check for softening of the finish
  • 15. 
    Technician A says that some vehicle makers do NOT apply undercoating to the floor pan.Technician B says that some vehicle makers do NOT apply anti-corrosion compound to interior cavities.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 16. 
    Anti-corrosion compound is typically applied:

  • with a wand
  • in the spraybooth
  • before part assembly
  • in the wheelhouse
  • 17. 
    Which of these is the most effective corrosion-inhibiting coating?

  • E-coat
  • Zinc phosphate
  • Self-etching primer
  • Wash primer
  • All
  • 18. 
    Technician A says that the presence of E-coat on replacement parts should be tested by lightly sanding.Technician B says that the presence of E-coat on replacement parts should be tested with a mild soap and water solution.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 19. 
    All of these areas may have thick chip-resistant coating EXEPT the:

  • dogleg area
  • rocker panel
  • bottom of the doors
  • bottom of the deck lid
  • 20. 
    Which of these usually requires the zinc coating to be removed on the entire flange?

  • Spot welds
  • GMA (MIG) plug welds
  • MIG brazing
  • Panel bonding
  • 21. 
    Technician A says that it may be necessary to treat the backside for corrosion at anchor clamp sites.Technician B says that it may be necessary to treat the backside for corrosion where paintless dent repairs were done.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 22. 
    Technician A says that when preparing aluminum parts, body hammers should be kept separate from those used for steel.Technician B says that when preparing bare aluminum parts, oxidation begins to form again after a couple of days.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 23. 
    What is the name of positive electrode?

  • Cathode
  • Anode
  • Cation
  • Anion
  • 24. 
    What is the chemical name given to Rust ?

  • Iron dioxide
  • Steel oxide
  • Iron oxide
  • Carbon dioxide
  • 25. 
    Technician A says that vehicle makers may indicate where chip-resistant coating should be applied on a specific vehicle.Technician B says that product makers may indicate where chip-resistant coating should be applied on a specific vehicle.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 26. 
    Technician A says that a way to prevent galvanic corrosion is to duplicate the original installation method.Technician B says that a way to prevent galvanic corrosion is to reuse coated bolts.Who is right?

  • A only
  • B only
  • Both A & B
  • Neither A nor B
  • 27. 
    What is the name of negative electrode?

  • Cathode
  • Anode
  • Cation
  • Anion
  • 28. 
    What is oxidation?

  • A reaction involving oxygen
  • A reaction involving non-metals
  • 29. 
    Is the following equation an example of oxidation?Na + Cl ----> NaCl

  • Yes
  • No
  • 30. 
    Which of these is a characteristic of weld-through primer?

  • Heat resistant
  • Etches into the metal
  • Must be wet for best performance
  • May be a two-part product
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