CON 252 Building Construction Method, Material, Equipment
Chapter 3. Review Questions
Student Name: _____Alitza Montesinos______________________
5. A sample 8-foot-long 2 × 4 weighs 10 pounds. After drying in an oven, it
weighs 8 pounds. What was its moisture content before drying? In its original
condition, was it adequately seasoned for use as a structural framing
member?
Ans:
MC=(Wwet-Wdry/Wdry)x100
MC=25%, No it must be seasoned to 15% or 19
8. Give the actual cross-sectional dimensions of the following pieces of kiln-
dried lumber: 1 × 4, 2 × 4, 2 × 6, 2 × 8, 4 × 4, 4 × 12.
Ans:
1x4=3/4”x3 1/2 4x4=3 1/2 x 3 1/2
2x4=1 1/2x3 1/2 4x12=3 1/2 11 1/4
2x6=1 1/2 x 5 1/2
2x8=1 1/2 x 7 1/4
11. Give three advantages of wood–plastic composites in comparison to solid
lumber. What are two common uses for wood–plastic composites?
Ans:
Three advantages are quality consistent, resistance to moisture, and no defects
or distortion
12. What are three common structural panel products? What is the most
commonly available panel size (length and width)?
Ans:
Three common structural products are used for walls, floor, and roof components.
The most commonly available panel size is 4x8.
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