WorksheetsWood conversion and Timber Seasoning
Total questions: 19
Worksheet time: 10mins
What are felled trees
Tress before they are cut down
Trees with no leaves
Trees after they are cut down
Trees after being converted into logs
Why are logs cut into boards
Better to look at
Easier to work with
Better for firewood
To have less wood wastage
Which of these is not a method of timber Conversion
Through and Through Sawing
Quarter Sawing
Tangential sawing
Rip Sawing
Is slash sawing another name for through and through sawing
True
False
What is an Advantage of Through and Through sawing
Can get thinner boards
More waste
Can get wider boards
No waste
Why is a sliver grain affect sought after from quarter sawn wood
Grain patter makes the wood more durable
Aesthetically pleasing to the eye
Straighter grain than usual
Wood is silver
Is quarter sawing more likely to cup
True
False
What kind of grain pattern does Tangential sawing produce
Silver Ribbon effect
Straight Grain Pattern
Diagonal Grain Pattern
Flame Grain pattern
Why does Tangential Sawing have a high labour cost
Log needs to be turned
Too much waste
Machine to cut tangentially costs a lot compared to other methods
A newly felled tree contains what percent (%) of moisture
10
20
50
70
What does moisture content does Timber seasoning aim to reduce to
Below 20%
Below 30%
Below 50%
Below 10%
MC stands for what
(a)
Wood is hygroscopic meaning....
It swells when hot
It is not affected by the moisture in the air around it
It is affected by the moisture in the air around it
It is invulnerable to water
Wood absorbs and releases moisture until it reaches a balance this is called...
Equilibrium
Hygroscopic
Balanced wood
Pyrogenic
A method of Timber Seasoning is....
Moisture Seasoning
Dry Seasoning
Water Seasoning
Air Seasoning
In air seasoning why are the planks of wood laid on brick up from the floor
So its easier to stack
To prevent the wood getting wet and rotting
To dry the wood quicker
To prevent fungi on the wood
Air seasoning brings the wood down to around ____% MC
22-24
10-12
18-20
30
What is pushed around the Kiln by fans
Moisture
Air
Steam
Condensation
What percent of MC is possible with Kiln seasoning
20%
10%
15%
5%
