Q.1
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
Q.2
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
Q.3
Which of these is the most effective corrosion-inhibiting coating?
  • E-coat
  • Zinc phosphate
  • Self-etching primer
  • Wash primer
  • All
Q.4
Is the following equation an example of oxidation?Cu + O2 ---> 2 CuO
  • Yes
  • No
Q.5
Which of the following metals is very unreactive and unlikely to corrode.
  • Copper
  • Gold
  • sodium
  • Potassium
Q.6
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
Q.7
All of these are a common characteristic of seam sealers EXCEPT that they:
  • can be painted
  • resist shrinkage
  • are self-healing
  • are flexible
Q.8
Anti-corrosion compound is typically applied:
  • with a wand
  • in the spraybooth
  • before part assembly
  • in the wheelhouse
Q.9
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
Q.10
The following metals would protect iron by electrons flowing to the iron is ... .
  • Silver
  • Gold
  • Copper
  • Magnesium
Q.11
Rusting is a special term, given to the corrosion metal is... .
  • Au
  • Fe
  • Pt
  • Ag
Q.12
Rusting can be prevented by
  • Alloying
  • Tinning
  • Galvanizing
  • All of above
Q.13
Name the two general classifications of corrosion
  • Direct chemical attack and Electrochemical attack
  • Fretting corrosion and Galvanic attack.
Q.14
To protect iron against corrosion, the most durable metal plating on it, is:
  • Zinc plating
  • Nickel plating
Q.15
Iron rust in the presence of:
  • Oxygen
  • Vacuum
  • Moisture
  • Moisture and Oxygen
Q.16
What is corrosion?
  • The release of oxygen
  • Breakdown of a metal
Q.17
Finish the equation: Aluminium + _________ --> Aluminium oxide
  • Oxide
  • Oxygen
  • Oxygen + water
  • Water
Q.18
Rust is,....
  • hydrated iron
  • iron oxide
  • copper carbonate
  • Hydrated iron oxide
Q.19
Two elemants joined together is called an __________
  • inget
  • element
  • alloy
  • gem
Q.20
Corrosion Inhibitor: A substance, which slows down the corrosion process when, added to an environment in small concentrations.Please confirm above statement is TRUE or FALSE
  • True
  • False
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