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CORROSION MCQs

Total Questions : 23 | Page 2 of 3 pages
Question 11. Which of these should be done to determine if a replacement part has E-coat?
  1.    Sand and check for a dusty residue
  2.    Wipe with solvent and check for pain transfer
  3.    Wipe with denatured alcohol and check for paint transfer
  4.    Heat with a heat gun and check for softening of the finish
 Discuss Question
Answer: Option B. -> Wipe with solvent and check for pain transfer
Question 12. Technician A says that when preparing aluminum parts, body hammers should be kept separate from those used for steel
  1.    A only
  2.    B only
  3.    Both A & B
  4.    Neither A nor B
 Discuss Question
Answer: Option A. -> A only
Question 13. Technician A says that the basecoat may be applied directly over a self-etching primer
  1.    A only
  2.    B only
  3.    Both A & B
  4.    Neither A nor B
 Discuss Question
Answer: Option B. -> B only
Question 14. Which of these is a characteristic of weld-through primer?
  1.    Heat resistant
  2.    Etches into the metal
  3.    Must be wet for best performance
  4.    May be a two-part product
 Discuss Question
Answer: Option A. -> Heat resistant
Question 15. Technician A says that acid rain is a corrosion promoter
  1.    A only
  2.    B only
  3.    Both A & B
  4.    Neither A nor B
 Discuss Question
Answer: Option C. -> Both A & B
Question 16. Technician A says that some undercoating material is water-based
  1.    A only
  2.    B only
  3.    Both A & B
  4.    Neither A nor B
 Discuss Question
Answer: Option D. -> Neither A nor B
Question 17. Which of these usually requires the zinc coating to be removed on the entire flange?
  1.    Spot welds
  2.    GMA (MIG) plug welds
  3.    MIG brazing
  4.    Panel bonding
 Discuss Question
Answer: Option B. -> GMA (MIG) plug welds
Question 18. Technician A says that one purpose for heavy-bodied seam sealers is for vertical joints
  1.    A only
  2.    B only
  3.    Both A & B
  4.    Neither A nor B
 Discuss Question
Answer: Option B. -> B only
Question 19. Technician A says that it is generally recommended to apply undercoating to the bottom of the fuel tank
  1.    A only
  2.    B only
  3.    Both A & B
  4.    Neither A nor B
 Discuss Question
Answer: Option D. -> Neither A nor B
Question 20. All of these are true about anti-corrosion compounds EXCEPT that they:
  1.    are applied inside aluminum cavities
  2.    should be cleared from drain holes
  3.    are usually topcoated
  4.    have self-healing capabilities
 Discuss Question
Answer: Option C. -> are usually topcoated

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