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General A&P FAA > Jeppesen Oral- Chapter 12 (Cleaning & Corrosion) > Flashcards

Jeppesen Oral- Chapter 12 (Cleaning & Corrosion) Flashcards

1
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A

far PART 43 appendix D

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2
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Pitot tubes, static ports, hinges, sealed areas and bearings, wheels

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3
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Soap detergents and water

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4
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Solvents and emulsions

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5
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Mild soap and water

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6
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Soap and water

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7
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  1. Environmental conditions 2. Electrolytes 3. Potential differnce
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8
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  1. Surface 2. Intergranualr 3. Filliform 4. Galvanic 5. Oxidation 6. Pitting 7. Fretting
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9
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Incomplete curing of a wash primer, prior to painting

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10
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A

Blistered paint surfaces/ bubbles under the paint

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11
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Corrosive environment and sustained tensile stress

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12
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A

Steel pin and aluminium hinge material are dissimilar metals

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13
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Dark, smoky appearance and often appears around the backs of rivets

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14
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Keep clean and properly lubricated

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15
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  1. Cleaning 2. Lubrication 3.Sealing 4. Inspection 5. Installing protective coats/ coverings
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16
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A

Nylon scrubber pads (Scotch Brite), aluminium wool or wire brush

17
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Steel particles become embedded in aluminium and cause corrosion

18
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Chemical that creates protective coating on aluminium alloys, and increases painting ability

19
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It removes anodized finish

20
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They cause the least amount of deterioration

21
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Under a dense coating of topcoat enamel such as polyurethane. Filliform corrosion is caused by improperly cured primer.

22
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In a location where there is a light amount of relative movement between two components and no way for the corrosive residue to be removed as it forms.

23
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Along the grain boundaries of aluminum alloys that have been improperly heat-treated. Extruded aluminum alloy is susceptible to intergranular corrosion.

24
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Anywhere different types of metal come in contact with each other, especially where moisture is present.

25
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In any metal component that is continually under a tensile stress. The metal around holes in castings that are fitted with pressed-in bushings is susceptible to stress corrosion.

26
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Remove the corrosion residue with a bristle brush or a nylon scrubber. Neutralize the surface with chromic acid or with some typer of conversion coating. Protect the surface from further corrosion with a coat of paint.

27
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An oxide coating or aluminum cladding.

28
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By glass bead blasting, by careful polishing with mild abrasive paper, or by using fine buffing compound on a cloth buffing wheel.

29
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Aluminum wool or aluminum wire brushed. Severe corrosion can be removed with a rotary file.

30
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Methyl Ethyl Ketone (MEK) or lacquer thinner

31
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A chemical conversion coating such as Alodine

32
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A stiff hog-bristle brush

33
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The tubing is filled with hot linseed oil then drained.

General A&P FAA (26 decks)

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