Design and Technology

Question 1

How do you make a Timber plank?

Answer 1

1. Cut down the tree
2. Take off leaves and branches
3. Debark log
4. Conversion - cut into small pieces
5. Seasoning - drying

Question 2

How do you make chipboard?

Answer 2

1. Get your spare wood and turn them into chips
2. Chips are then washed
3. Chips are mixed with Urea formaldehyde
4. They are then pressed into sheets

Question 3

How do you make MDF?

Answer 3

1. Get your spare wood and turn them into chips
2. Chips are then washed
3. Chips then turned into fibres
4. Fibres mixed with Urea Formaldehyde
5. Then pressed into sheets

Question 4

How do you make Plywood?

Answer 4

1. Tree is cut down
2. Branches and leaves removed
3. Veneer is cut into thin sheets
4. Glue each sheet at 90 degrees
5. Press down with heat

Question 5

What are Thermochromic Pigments - Name an example?

Answer 5

They change colour in reaction to the heat.

Kettles, baby bottles etc

Question 6

What are Photochromic Pigments - Name an example?

Answer 6

They change colour in reaction to the light .

Colour changing glasses, windows, etc

Question 7

What is Shape Memory Alloy - Name an example?

Answer 7

Returns to its original shape, in reaction to heat.

Braces and glasses

Question 8

What is Polymorph - name an example?

Answer 8

They are granules that once exposed to hot water, become a modelling material.

Modelling and repairs

Question 9

Explain the Primary processing of Papers and Boards?

Answer 9

Paper is made by making pulp (Pulp is a mix of tree fibres and water). This is cooked and bleached white, and adding any other additives. The pulp is then drained and goes through Calendering, where the pulp is drained and goes through the rollers to convert it to its stock forms