| 1. |
Wood and wood-based products in a variety of species, grain patterns, textures, and colors can be finished effectively by many different methods.
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True |
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False |
| 2. |
The factors affecting finish performance include the effect of the wood substrate, properties of the finishing material, details of application, and severity of exposure
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True |
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False |
| 3. |
What does MFMA stand for?
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Maple Flooring Manufacturers Association |
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Main Flooring Manufacturers Association |
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Main Flooring Maple Association |
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None of the above |
| 4. |
What does figure 15-3 illustrate about?
(Refer Pg 15-4)
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Early wood and latewood bands in Southern Pine |
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Lumber grain affects finish performance |
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Paint applied over edge-grain boards |
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None of the above |
| 5. |
The texture (roughness or smoothness) of the wood surface has no effect on the selection, application, and service life of finishes. |
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True |
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False |
| 6. |
The three main types of preservatives are (a) preservative oils (such as coal-tar creosote), (b) organic solvent solution (such as pentachlorophenol), and (c) waterborne salts (such as chromated copper arsenate (CCA))
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True |
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False |
| 7. |
Weathering is the general term used to describe the degradation of materials exposed outdoors. This degradation occurs on the surface of all organic materials, including wood and finishes used on wood such as paints and stains.
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True |
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False |
| 8. |
What does ALSC mean?
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American Lumber Standard Committee |
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American Line Standard Committee
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Associates Lumber Standard Committee
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None of the above
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| 9. |
The surface of wood consists of four types of organic materials: cellulose, hemicellulose, lignin, and extractives. |
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True |
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False |
| 10. |
Although the erosion of the wood surface through weathering is a slow process, the chemical changes that occur within a few weeks of outdoor exposure can drastically increase the adhesion of paints subsequently applied to the weathered surface. |
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True |
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False |
| 11. |
The moisture content of wood is the amount of water contained in the wood. It includes both water absorbed into the wood cell wall and free water within the hollow center of the cell, and it is expressed as a weight percentage. |
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True |
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False |
| 12. |
What does ASTM stand for? |
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American Society for Testing and Materials |
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American Standards for Testing and Materials |
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American Standard for Testing and Mechanics |
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None of the above |
| 13. |
Five general categories of wood products are commonly used in exterior construction: (a) lumber, (b) plywood, (c) finger- jointed wood, (d) reconstituted wood products (such as hardboard, oriented strand board (OSB), and particleboard), and (e) preservative-fire-retardant-treated wood.
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True |
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False |
| 14. |
Water repellent is a generic name for a wide variety of sealers and wood treatments that change the surface properties of wood so that the wood sheds liquid water.
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True |
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False |
| 15. |
The various dimensions of wood and wood-based building materials are constantly same because of the changes in moisture content, which in turn are caused by fluctuations in atmospheric RH as well as the periodic presence of free moisture such as rain or dew.
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TRue |
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False |
| 16. |
What does figure 15-10 illustrate about?
(Refer Pg 15-13)
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Decay in wood railing fully exposed to weather |
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Paint failure at ends of boards |
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Front view of exterior grade of plywood siding after 10 years of exposure |
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None of the above |
| 17. |
Penetrating finishes are classified as (a) transparent or clear systems, (b) lightly colored systems, (c) pigmented or semi- transparent systems, and (d) oils.
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True |
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False |
| 18. |
The simplest finish for wood is that created by the weathering process. Without paint or treatment of any kind, wood surfaces gradually change in color and texture, and they may stay almost unaltered for a long time if the wood does not decay. |
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True |
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False |
| 19. |
Clear varnish is the primary transparent film-forming material used for a natural wood finish, and it greatly enhances the natural beauty and figure of wood. |
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True |
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False |
| 20. |
Chalking is the separation of the new paint film from the old paint coat, which indicates a weak bond between the two. |
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True |
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False |
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