CMP 124 Lecture Quiz with Correct Answers
Effect of moisture content on wood properties - Answer-the dryer the wood the less it warps, rots, the stronger/stiffer it is, and the easier it is to bond.
2 x 3 - 2x6 Dimensions actual vs advertised - Answer-minus .5"
2x8 - 2x12 Dimensions act...
CMP 124 Lecture Quiz with
Correct Answers
Effect of moisture content on wood properties - Answer-the dryer the wood the less it
warps, rots, the stronger/stiffer it is, and the easier it is to bond.
2 x 3 - 2x6 Dimensions actual vs advertised - Answer-minus .5"
2x8 - 2x12 Dimensions actual vs advertised - Answer-minus .75"
Cedar and red wood...? - Answer-Don't rot or decay
closer rings mean - Answer-stressed environment
Ponderosa Pine - Answer-smooth grain, less cracks, warps, chips, (deck material)
S-DRY - Answer-19% or less moisture content (MC)
S-GRN - Answer-over 19% moisture content (MC)
MC-15 - Answer-moisture content of 15%
Advantages of drying lumber - Answer-Increased strength and stiffness, more
dimensional, lighter weight, less fungus
Strength and stiffness increase - Answer-As Moisture Content decreases
Pith - Answer-center of wood
Long axis - Answer-Direction of grain cells, wood character, structural properties
(Butcher board)
Spring wood (early) - Answer-Larger, Less Dense
Summer Wood (late) - Answer-denser, dark ring, stronger/stiffer
Soft wood - Answer-Conifers-pine-needle 75% of total lumber production, used for
structural framing because of abundance and cost efficient
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