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WorksheetsBuilding Materials: Lumber
Total questions: 10
Worksheet time: 6mins
TRUE or FALSE:
Wood products used for building materials are often grown in managed forests and harvested by sawyers, equipment operators and sawmill workers
FALSE
TRUE
TRUE or FALSE:
Most wood products such as dimensional lumber like 2"x4" or 4"x 4" are milled from raw materials harvested from the forests of North America
TRUE
FALSE
Lumber is graded and sorted by
Wood Grain
Thickness
Color
Length
Width
TRUE or False:
Knots are found in most grades of lumber.
FALSE
TRUE
What are some of the natural defects found in wood products?
Cracks and splits
Wanes and knots
Warping, cupping and twists
All of the above
Warping in wood products is caused by....
Rapid drying
Excessive moisture
Splits or cracks in the wood
All of the above
TRUE or FALSE:
Dry rot is the breakdown of wood caused by a wood‑destroying fungus.
FALSE
TRUE
A kiln is like a huge oven. It is used for what purpose?
Cooking lunch for the mill workers
Baking treats for the beavers and bears of the forest
Making ceramic dishes for the heavy equipment operators
Drying out lumber in a slow and controlled environment
Building materials made from forest products are treated with preservatives to prevent them from....(fill in the blank)
turning into pine cones
running away to the join the circus
molding, decaying or suffering damage from insects
TRUE or FALSE:
Forest products commonly used for construction purposes are milled and manufactured before being transported to lumber yards and hardware stores. These products include studs, planks, boards and beams.
TRUE
FALSE
