Corrosion Basics 1
Corrosion Basics 2
Cleaning 1
Cleaning 2
Miscellaneous
100
Occurs when two dissimilar metals make contact in the presence of an electrolyte.
Galvanic
100
True or false, exhaust gasses are corrosive?
True
100
what is this 
Emery Cloth
100
Basic fuselage cleaning method
Soapy Water
100
How may intergranular corrosion be detected?
Eddy current or ultrasonic inspection
200
What happens when two materials fit tightly together but shift side to side while in contact.
Fretting
200
Exfoliating/ Inter / Intragranular Corrosion
200
How long should paint remover remain on the surface before it is washed off?
Enough time to wrinkle and completely lift the paint.
200
What do you NOT clean an aircraft window with
Anything that will scratch the plastic
(microfiber, hard bristle brushes)
200
Where would corrosion most likely occur on an aircraft skin.
Around fasteners, lap joints, spot welds, and piano type hinges.
300
One of the most destructive and intense forms of corrosion.
First noticeable as a white or gray powdery deposit.
Pitting
300
What do you do when an anodized film has been partially removed from an aluminum alloy surface.
Can be partially restored via chromic-acid solution.
300
How can parts made of Carbon or Alloy Steel be cleaned?
With buffers, wire brushes, sandblasting, steel wool, or abrasive papers.
300
What is used to clean a surface just before painting
Aliphatic Naphtha
300
What is the difference between aromatic and aliphatic naphtha
Aliphatic Naphtha is a petroleum product, and Aromatic Naphtha is a coal tar product.
400
Other Names for General Surface Corrosion
Uniform Etch
or
Uniform Attack Corrosion
400
What replacement method is there for cables with internal corrosion?
None. Replace the section of cable.
400
What is important to remember when cleaning corrosion from Aluminum parts?
Do NOT use steel/wire brushes, steel wool, emery cloth, or other harsh abrasives.
They will damage the aluminum.
400
How do you clean rust on aluminum?
Rust doesn't form on aluminum.
400
Define Anodizing
Acid-plating process that hardens the surface, reduces porosity, increases abrasion resistance, and has high dielectric strength.
500
What are the 5 steps of Corrosion Control
Clean + strip corrosion, Clear all corrosion, Apply chemical cleaning, Apply corrosion resistant film, Apply paint
500
Define Alodizing.
Formation of a hard, airtight oxide coating on the surface of aluminum alloys by chemicals means.
500
How do you keep the bilge area clean?
Keep it clear of extraneous materials including water and oil.
500
How do you clean a tire
Wipe it down and then wash with soapy water.
500
How often should seaplanes be checked for corrosion
Every Day