Fundamentals of Wood Construction Quiz
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Question 1 of 10
1. Question
1. What is the hard fibrous substance that forms the major part of the trunk and branches of a
tree?Hint
Wood is the hard, fibrous substance that forms the major part of the trunk and branches of a tree.
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Question 2 of 10
2. Question
2. What does seasoning lumber mean?
Hint
Seasoning lumber is removing moisture from the small and large cells of wood, or drying.
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Question 3 of 10
3. Question
3. True or False. A Blue Stain (mold fungus) may weaken the wood.
Hint
False. A blemish caused by a mold fungus; it does not weaken the wood.
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Question 4 of 10
4. Question
4. True or False. Trees are classified as either softwood or hardwood, therefore all lumber is
classified the same way.Hint
True. Trees are classified as either softwood or hardwood, as shown in Table 3. All lumber is therefore classified in the same way.
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Question 5 of 10
5. Question
5. True or False. The quality of softwoods are classified according to their intended use.
Hint
True. The quality of softwood lumber is classified, according to its intended use, as being yard, structural, factory, or shop lumber.
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Question 6 of 10
6. Question
6. A grade of wood is based on what?
Hint
The grade of a piece of lumber is based on its strength, stiffness, and appearance.
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Question 7 of 10
7. Question
7. Lumber is graded for quality in accordance with American Lumber Standards set by the National
Bureau of Standards for the U.S. Department of Commerce. According to table 9-5, what is
Grade A lumber?Hint
This lumber is practically free of defects and blemishes.
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Question 8 of 10
8. Question
8. True or False. Grades of hardwood lumber are established by the National Hardwood Lumber Association.
Hint
True. Grades of hardwood lumber are established by the National Hardwood Lumber Association.
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Question 9 of 10
9. Question
9. According to table 9-9, plywood uses exterior, where would grade A-A be used?
Hint
Outdoor where appearance of both sides is important.
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Question 10 of 10
10. Question
10. True or False. Hardwood plywood panels are primarily used for door skins, cabinets, and wall
paneling.Hint
True. Hardwood plywood panels are primarily used for door skins, cabinets, and wall paneling.