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Corrosion
Quiz 2
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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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