Timbers

Question 1

Types of deciduous trees?

Answer 1

Oak
Ash
Mahogany
Teak
Birch
Beech

Question 2

Types of coniferous trees?

Answer 2

Pine
Spruce
Douglas fir
Redwood
Cedar
Larch

Question 3

Types of manufacture boards?

Answer 3

Plywood
Marine plywood
Aero ply
Flexible plywood
Chipboard
MDF (Medium density-fibreboard)

Question 4

Properties of coniferous/softwoods?

Answer 4

Grow in cooler climates
Have a loser grain structure
Usually softer to work
Trees grow tall and straight
Evergreen- don’t lose their needles

Question 5

Properties of deciduous/hardwoods?

Answer 5

Have a tighter grain
Can be very expensive
Found in tropical or sub-tropical climates
Usually quite hard
Seeds are enclosed in fruits
Slower growing

Question 6

Properties of manufacture boards?

Answer 6

Are inexpensive
Timber sheets which are produced by gluing wood fibres
Are made using ware
Covered in a thin layer of real wood

Question 7

Name types of stock forms?

Answer 7

Rough Sawn
Planed Square Edge
Planned all round
Natural timber
Manufacture board
Mouldings

Question 8

What is seasoning?

Answer 8

The removal of excess moisture from newly sawn timber.

Question 9

Types of seasoning?

Answer 9

Natural seasoning
Kiln seasoning

Question 10

Advantages of natural seasoning?

Answer 10

Cheap
Some say the timber is stronger than kiln seasoned

Question 11

Disadvantages of natural seasoning?

Answer 11

Very slow
Bugs and fungus survive
Water content hard to control
Ends of planks can split

Question 12

Advantages of kiln seasoning?

Answer 12

Accurate water content
12% or lower moisture content
Kills bugs and fungus
Fast

Question 13

Disadvantages of kiln seasoning?

Answer 13

Expensive

Question 14

Name types of timber defects?

Answer 14

Splitting
Knots
Dry rot
Woodworm

Question 15

What is splitting?

Answer 15

Occurs at the end of a plank
Ends are cut off
Generally unavoidable

Question 16

What are knots?

Answer 16

Knots are where a branch was attached to a tree
Live knots are decorative
Dead knots need to be avoided

Question 17

What is dry rot?

Answer 17

Caused by incorrect seasoning or poor building maintenance. Caused by timber being over 20% moisture content.

Question 18

What is woodworm?

Answer 18

A beetle that lays eggs on timber. The larvae eats the wood for a year then emerge as adult beetles in the spring. Holes and wood dust are a sign of woodworm

Question 19

Properties of pine?

Answer 19

Straight grain
Knotty

Question 20

Properties of spruce?

Answer 20

Straight grain
Resistance to splitting

Question 21

Properties of Douglas fir?

Answer 21

Stable
Resistance to corrosion
Straight or slightly wavy grain

Question 22

Properties of cedar?

Answer 22

Straight grain
Sound dampening
Resistance to moisture

Question 23

Properties of larch?

Answer 23

Attractive grain patterns

Question 24

Properties of oak?

Answer 24

Attractive grain
Good weather resistant
Contains tannic acid

Question 25

Properties of ash?

Answer 25

Attractive open flexible grain

Question 26

Properties of mahogany?

Answer 26

Rich dark red colour Interlocking grain

Question 27

Properties of teak?

Answer 27

Straight grain Natural oils resist moisture, acids and alkalis

Question 28

Properties of birch?

Answer 28

Resists warping Straight close grain

Question 29

Properties of beech?

Answer 29

Close grain Does not impart taste on food

Question 30

Properties of plywood?

Answer 30

Good strength in all directions No grain weakness

Question 31

Properties of marine plywood?

Answer 31

Resistant to moisture Resistant to fungal attack

Question 32

Properties of aeroply?

Answer 32

Lightweight Available in thin sheets

Question 33

Properties of chipboard?

Answer 33

Wood chips compressed with urea formaldahyde

Question 34

Properties of MDF?

Answer 34

Two smooth faces Available veneered

Question 35

Uses of oak

Answer 35

Furniture Flooring Cladding

Question 36

Use of Ash

Answer 36

Tool handles Ladders Sports goods

Question 38

Uses of teak

Answer 38

Outdoor furniture Laboratory benches

Question 39

Uses of birch

Answer 39

Veneers used for construction Indoor panelling

Question 40

Uses of beech

Answer 40

Bowls Chopping boards Tools

Question 41

Uses of pine

Answer 41

Construction work Interior joinery

Question 42

Uses of spruce

Answer 42

Indoor furniture

Question 43

Uses of Douglas fir

Answer 43

Plywood construction Joinery and construction work

Question 44

Uses of larch

Answer 44

Garden furniture Decking Fencing

Question 45

Uses of cedar

Answer 45

Sheds Beehives Exterior cladding

Question 46

Uses of plywood

Answer 46

Floorboards Indoor furniture Structural work

Question 47

Uses of marine plywood

Answer 47

Boat dashboards Boat lockers

Question 48

Uses of aero ply

Answer 48

Gliders Laminated furniture

Question 49

Uses of flexible plywood

Answer 49

Curved panels Laminated furniture

Question 50

Uses of chipboard

Answer 50

Kitchen worktops Flat-pack furniture

Question 51

Properties of flexible plywood?

Answer 51

Open grained allows sheet to flex

Question 52

Uses of MDF

Answer 52

Model making Bookcases Desks

Question 54

Uses of mahogany

Answer 54

Indoor furniture Shop fittings Cabinets