D.T.

HideShow resource information
  • Created by: xArChIez
  • Created on: 21-05-17 21:23
What can a soft wood also be called?
Deciduous
1 of 20
What can a hard wood also be called?
Evergreen
2 of 20
Name 3 man-made boards.
Chipboard, MDF & Plywood.
3 of 20
What is the name of Code 1 PETE?
Polyethylene Terephthalate
4 of 20
What is the name of Code 2 HDPE?
High-Density Polyethylene
5 of 20
What is the name of Code 3 PVC
Polyvinyl Chloride
6 of 20
What is the name of Code 4 LDPE?
Low-Density Polyethylene
7 of 20
What is the name of Code 5 PP
Polypropylene
8 of 20
What are the two types of plastics?
Thermoplastics & Thermosets
9 of 20
How many stages are there to make Thermoplastics?
3
10 of 20
What is the process used to make Thermoplastics called?
Polymerisation
11 of 20
How do Thermosets respond to being heated?
They burn and smoke at a high temperature.
12 of 20
How do Thermoplastics respond to being heated?
They soften and lose strength until they melt.
13 of 20
What is the process called when you dry out wood?
Seasoning
14 of 20
During seasoning wood often moves or changes shape, what is this called?
Warping
15 of 20
Name 2 effects of warping?
Splitting and Cupping
16 of 20
When wood is cut down it is cut down into what?
Planks
17 of 20
What is a disadvantage of cutting wood into planks.
It limits the size of the planks to the diameter of the tree.
18 of 20
How long does 'natural' seasoning take?
2 Years
19 of 20
How can you speed up 'natural seasoning?
A kilm
20 of 20

Other cards in this set

Card 2

Front

What can a hard wood also be called?

Back

Evergreen

Card 3

Front

Name 3 man-made boards.

Back

Preview of the front of card 3

Card 4

Front

What is the name of Code 1 PETE?

Back

Preview of the front of card 4

Card 5

Front

What is the name of Code 2 HDPE?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Design & Technology resources:

See all Design & Technology resources »See all DT resources »