Woods

Question 1

soft woods

Answer 1

pine
spruce
douglas fir
redwood
cedar
larch

Question 2

hardwoods

Answer 2

oak
ash
mahogany
teak
birch
beech

Question 3

Manufactured boards

Answer 3

plywood
mdf
veneers and melamine formaldehyde laminates

Question 4

performance characteristics of timbers

Answer 4

grain pattern and direction
surface defects
warpage
shrinkage
splitting
joining
forming
steam bending
laminating
machining qualities
resistance to decay
moisture resistance
toxicity

Question 5

stock forms

Answer 5

planks, strips, soft sawn, PSE, PAR, mouldings and veneers

Question 6

two types of seasoning

Answer 6

kiln - accurate and fast, kills all but is expensive
natural - takes longer and bugs/fungus survive but is cheaper

Question 7

timber defects

Answer 7

splitting
dry rot
knots
wood worms

Question 8

pine wood

Answer 8

has a straight grain and is knotty

uses- construction work and timber framing

Question 9

spruce

Answer 9

straight grain and res to splitting

uses- indoor furniture

Question 10

Douglas fir

Answer 10

straight or slightly wavy grain with few knots and good res to corrosion

uses- veneers and joinery

Question 11

larch

Answer 11

hard and tough with a good res to moisture, also has attractive grain pattern

uses- garden furniture, decking and fencing

Question 12

cedar

Answer 12

dampens sounds, high moisture res, straight grain but can corrode ferrous metals because of acidity

uses- ext cladding and sheds

Question 13

oak

Answer 13

hard and tough with an attractive grain, good weather res however can corrode screws

uses- furniture and boat building

Question 14

ash

Answer 14

tough with an attractive open grain which makes it flexible

uses- tool handles , sports goods and ladders

Question 15

mahogany

Answer 15

mahogany can be hard to work with cause of interlocking grain, rich dark red colour

uses- indoor furniture and cabinets

Question 16

teak

Answer 16

hard tough with a straight grain, its natural oils res moisture acids and alkalis

uses- outdoor furniture

Question 17

birch

Answer 17

hard with a closed straight grain, resists warpage

uses- furniture and indoor panelling

Question 18

beech

Answer 18

tough and hard with a close grain

uses- chairs chopping boards and mallets

Question 19

plywood

Answer 19

thin layers of wood

uses- desk tops and floor boards

Question 20

chipboard

Answer 20

wood chips compressed together with resin

uses- veneered or laminated to be used in kitchens

Question 21

MDF

Answer 21

Compressed wood fibers

uses- model making, desks, and cabinets