Specialist - Timber

Question 1

What does availability mean

Answer 1

The ease of sourcing and purchase

Question 2

Why is bulk buying timber good

Answer 2

Reduces transportation costs
Often the goods will be cheaper if bought in bulk

Question 3

What is unit cost

Answer 3

The cost of one unit of the material

Question 4

What is total cost

Answer 4

The cost of all the materials purchased

Question 5

What are some ways to change the colour of wood

Answer 5

Staining or painting

Question 6

What does FSC stand for

Answer 6

Forest Stewardship council

Question 7

What is the job of FSC

Answer 7

ensures the responsible management of forests, so they are felled responsibly and sustainably

Question 8

How can woods be used in recycling

Answer 8

Made into MDF or similar composite boards

Question 9

What is torsion

Answer 9

A twisting force applied to boths ends of a material

Question 10

What is shear

Answer 10

Forces acting on the material in opposite directions, causing it to split

Question 11

What is tension

Answer 11

A pulling force on the material

Question 12

What is compression

Answer 12

An inward pushing force on the material

Question 13

What is bending

Answer 13

Forces at an angle - particularly in sheet materials

Question 14

What are some measures taken to woods, to stop timber from warping due to moisture or other conditions

Answer 14

Metal brackets which hold the wood in place

Question 15

Why are hardwoods less likely to warp than softwoods

Answer 15

Because they are more dense and have a closer grain

Question 16

What is the tensile strength of wood

Answer 16

Very high due to grain and structure

Question 17

What an affect tensile strength of wood

Answer 17

water

Question 18

What is the compression strength of wood

Answer 18

Excellent, it is very good at withstanding compression

Question 19

What is the main factor which weakens all aspect of woods strength

Answer 19

Moisture

Question 20

What is the bending strength of wood

Answer 20

Liable to snap, however certain factors, such as heat or steam, can soften the grain enough to allow the wood to bend and set

Question 21

What is kerfing

Answer 21

Creating slots in the wood with a straw, allowing the wood to bend, and applying glue to the slits

Question 22

How can you increase the torsional strength of timber

Answer 22

By using metal brackets

Question 23

What are the 6 R’s, used to reduce the negative environmental impact of wood

Answer 23

Reduce, Reuse, Refuse, Recycle, Repair, Rethink

Question 24

What actions are B and Q taking to reduce the negative environmental impact of wood production

Answer 24

Giving away free wood, which would normally be discarded

Question 25

How is wood filler made

Answer 25

By using sawdust from soft wood and combining it with woodglue

Question 26

Which continent has seen an increase in forestry and trees

Answer 26

asia

Question 27

What is meant by mature timber

Answer 27

trees that is the correct age for timber

Question 28

How long do softwoods take to mature

Answer 28

10-15 years

Question 29

What is a company that uses soft wood

Answer 29

IKEA

Question 30

What is a company that uses hard wood

Answer 30

Oak furniture land

Question 31

What does debarking mean

Answer 31

The removal of bark from a tree

Question 32

What does PAR stand for and mean

Answer 32

Planed all round, a process done to wood planks to smooth them out

Question 33

What does rough sawn mean

Answer 33

Where the timber has not been planed, only sawn

Question 34

Which is better, rough saw or PAR

Answer 34

rough saw is cheape, but PAR takes varnish and finishes better

Question 35

What does seasoning mean

Answer 35

Drying wood so it can be used

Question 36

What are the two methods of seasoning

Answer 36

Air drying Kiln drying

Question 37

How long does air drying take

Answer 37

1 year

Question 38

What is kiln drying

Answer 38

Using heat and pressure to remove moisture from wood, as well as killing bacteria and insects which could harm it

Question 39

What is the typical moisture content of wood when it is first felled

Answer 39

Over 50 percent

Question 40

What is the moisture content needed for exterior use of timber

Answer 40

20 percent

Question 41

What is the moisture content needed for interior uses of timber

Answer 41

15 percent (10 if it will be subject to lots of heat)

Question 42

How does plywood increase strength

Answer 42

By laminating the sheets so as the grains are running parallel to each other, which greatly increases in their strength

Question 43

Which boards are made using lamination techniques

Answer 43

Plywood and blockboard

Question 44

What are 3 forms which woods come in

Answer 44

Boards Square sections Dowel Sheets

Question 45

What is continuous production

Answer 45

Production which runs 24 hours a week

Question 46

What is batch production

Answer 46

Batch products are produced in smaller quantities