Airframe Chapter 06 Flashcards

0
Q

What are the two types of dope used for fabric finishes?

A

Cellulose Nitrate and Cellulose Acetate Butyrate

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1
Q

Why is butyrate dope safer to use than nitrate dope?

A

It is much less flammable.

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2
Q

What is the appearance of a blushing paint finish?

A

Chalky or cloudy.

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3
Q

What finishing defect is the result of a paint room temperature that is too warm?

A

Pinholes or blisters.

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4
Q

What causes dope to blush?

A

High humidity, moisture in the spray system, or application over a damp surface.

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5
Q

What factors cause spray paint sags and runs?

A

Inadequate surface preparation or paint sprayed on too thickly.

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6
Q

What components or parts of the airframe must be protected from damage when using paint stripper?

A

Windshields and windows, plastics, composites, synthetic rubber, and fabrics.

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7
Q

What is the function of zinc-chromate or wash primers?

A

Primers serve to inhibit corrosion and provide a good bond between the metal and the topcoats.

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8
Q

Name several common types of paint used on aircraft.

A

Zinc-chromate and wash primers, synthetic enamels, acrylic lacquer, and polyurethane.

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9
Q

What is the proper thinner to use with zinc-chromate primer?

A

Toluene

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10
Q

What health and safety precautions must be observed when using the toxic solvents and thinners that are part of modern finishing systems?

A

Respirators and/or masks must be worn when spraying finishes.

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12
Q

If spray painting dust causes a surface to appear dry and rough, what are the most likely causes?

A

Too much air pressure or the spray gun is too far from the surface being painted.

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13
Q

What causes “orange-peel”?

A

Spray pressure too high, use of a thinner that dries too fast, cold temperatures, or a damp draft over the surface.

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14
Q

What regulation governs the application of the registration numbers to aircraft registered in the United States?

A

FAR Part 45

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15
Q

Other than appearance, what is another reason for touching up painted surfaces?

A

Reduction of elimination of general corrosion problems.

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16
Q

What references should be used to determine if a control surface must be checked and/or rebalanced after painting?

A

The manufacturer’s service manual.

17
Q

What would be the effect if dope was used over paint or enamel?

A

The dope tends to dissolve these materials.

18
Q

What are the three most commonly used methods of applying paint?

A

Dipping, brushing, and spraying.

19
Q

What is the effect on paint finishes if too much drier is added to the paint?

A

The paint film will be brittle and tend to crack and peel.

20
Q

What paint systems may be used with epoxy topcoats?

A

Any paint system in good condition.