ASA Aircraft Finish

1 (8026) - If registration numbers are to be applied to an aircraft with a letter height of 12 inches, what is the minimum space required for the registration mark N1683C?Note:2/3 x height = character width.1/6 x height = width for 1.1/4 x 2/3 height = spacing.1/6 x height = stroke or line width.

A- 52 inches.

9 (8034) - What is likely to occur if unhydrated wash primer is applied to unpainted aluminum and then about 30 to 40 minutes later a finish topcoat, when the humidity is low?

A- Corrosion.

13 (8038) - What is the usual cause of runs and sags in aircraft finishes?

A- Too much material applied in one coat.

4 (8029) - Which type of coating typically includes phosphoric acid as one of its components at the time of application?

A- Wash primer.

12 (8037) - What is likely to occur if hydrated wash primer is applied to unpainted aluminum and then about 30 to 40 minutes later a finish topcoat, when the humidity is low?

B- A glossy, blush-free finish.

14 (8039) - Which defect in aircraft finishes may be caused by adverse humidity, drafts, or sudden changes in temperature?

B- Blushing.

3 (8028) - What is used to slow the drying time of some finishes and to prevent blush?

B- Retarder.

8 (8033) - Which of the following is a hazard associated with sanding on fabric covered surfaces during the finishing process?

B- Static electricity buildup.

10 (8035) - Fungicidal dopes are used in aircraft finishing as the

B- first coat to prevent fabric rotting and are applied thin enough to saturate the fabric.

7 (8032) - A correct use for acetone is to

B- remove grease from fabric.

15 (8040) - Which statement is true regarding paint system compatibility?

C- Old wash primer coats may be overcoated directly with epoxy finishes.

5 (8030) - Which properly applied finish topcoat is the most durable and chemical resistant?

C- Polyurethane.

11 (8036) - Before applying a protective coating to any unpainted clean aluminum, you should

C- avoid touching the surface with bare hands.

2 (8027) - If masking tape is applied to an aircraft such as for trim spraying, and is left on for several days and/or exposed to heat, it is likely that the tape will

C- cure to the finish and be very difficult to remove.

6 (8031) - Aluminum-pigment in dope is used primarily to

C- reflect ultraviolet from the fabric.