D.T.

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

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