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WorksheetsTimber Technology
Total questions: 45
Worksheet time: 23mins
Why are tree logs converted?
To allow drying to occur quicker
To allow them be used as timber
To assess the quality of the wood
All of the above
What is timber conversion?
Converting wood to projects
Converting seeds to trees
Converting logs to boards
Converting land to forestry
What type of conversion method is shown above?
Through and through
Quarter sawn
Tangential sawn
Rough sawn
What method of Timber conversion is shown above?
Rough sawn
Tangential sawn
Quarter sawn
Through and through sawn
What method of conversion is shown above?
Through and through
Quarter sawn
Rough sawn
Tangential sawn
Check all the advantages of converting logs by through and through sawn
Fast
Low cost
Stable boards
Little waste
Check all the correct advantages for converting logs by quarter sawn;
Attractive grain
Stable boards
Little waste
Quick
Check all the disadvantages of tangential conversion:
More waste
Boards prone to cupping
Higher cost
No attractive grain pattern
Above is a common natural defect that can happen when logs are converted. What is its correct name?
Bowing
Twisting
Cupping
Shrinkage
Silver grain appears in what type of wood when converted by quarter sawn?
Ash
Oak
Birch
Douglas fir
Radial sawn conversion is another name for?
Plain sawn
Through and through sawn
Quarter sawn
Tangential sawn
During conversion bark is processed into _______.
Plywood
Small boards
Garden Mulch
Paper
Flame grain is displayed on boards converted by which method?
Tangential sawn
Through and through
Quarter Sawn
All of the above
What are the three main parts of a living tree?
Branches, Crown and Bark
Crown, Leaves, and Roots
Crown, Trunk, and Roots
None of the above
Trees provide a huge variety of products for humanity.
True
False
Dead bark or outer bark is a layer of dead tissue which is a protection for the trunk and branches.
True
False
Live bark is a layer of dead tissue under the dead bark.
True
False
Heartwood or truewood is made up of cells that are actually dead.
True
False
Heartwood or truewood is made up of cells that are actually dead.
True
False
The pith is at the center of the tree.
True
False
The annual growth rings tell the age of the tree.
True
False
Trees come in two categories: coniferous trees (evergreen trees) or deciduous trees.
True
False
Is this bench made out of hardwood or softwood?
Hardwood
Softwood
What type of softwood is this?
Yellow pine
Deal board
White pine
Cedar
Cedar is known as ...
Softwood
Hardwood
The timber defects seen in this bench are known as ...
Twist
Knots
Stains
None of the above
Is this bench made from treated pine?
Yes
No
Not sure
Maybe
Conversion refers to the way logs are turned into planks of wood.
True
False
Seasoning of timber is all about reducing the moisture content in timber.
True
False
These are ...
Timber challenges
Bad timber
Timber defects
None of the above
Which of these images is dry rot:
Which 2 conditions will encourage dry rot growth: (pick 2 options below)
Seasoned timber
Moisture content greater than 20%
Warmth
application of preservatives
good ventilation
"The amount of moisture in wood"
What does this statement best describe?
Relative humidity
Dew point
Moisture content
Dry Rot
There are several different ways that trees are sawn during the conversion process, they are
1 Tangential cut
2 Through and Through cut
3 Baulk
4 Quater cut
1 Baulk
2 Tangential cut
3 Through and Through cut
4 Quater cut
1 Baulk
2 Through and Through cut
3 Tangential cut
4 Quater cut
Softwoods come from (a) trees that grow in colder climates.
Hardwoods come from (a) trees that shed thier leaves in the winter.
Softwoods grow (a) than Hardwoods.
Which type of wood is most expensive?
Hardwood
Softwood
Once trees have been sawn and converted into usable timber it needs to be (a) to prevent it from warping and splitting.
Wood can be air seasoned or seasoned in a (a) using heat to remove moisture.
Mahogany is a
Hardwood
Softwood
Manmade Board
The material shown in the image is (a)
Which process isn't used when trees are converted into workable timber?
Debarking
Gluing & Pressing
Seasoning
Felling
Conversion & Sawing
Which type of wood is most expensive?
Hardwood
Softwood
Wood can be air seasoned or seasoned in a (a) using heat to remove moisture.
