DT

Question 1

What is the purpose of a sliding bevel tool

Answer 1

To measure and copy specific angles - can be changed and fixed

Question 2

What are the tree types of chisel

Answer 2

Bevel- for rough chopping
Firmer- has strong blades to remove large pieces of wood
Paring- for shaving thin slices of wood

Question 3

What is the general purpose of a chisel?

Answer 3

Used in shaping wood by cutting it with a sharp blade and hammer

Question 4

What are two examples of temporary joining techniques?

Answer 4

Nuts+bolts

Screws

Question 5

What are two examples of permanent joining?

Answer 5

Welding

Adhesive joining

Question 6

What are the three types of drill bit

Answer 6

Twist drill - for small holes
Flat bit - for medium sized holes
Hole saw - for large circles or holes

Question 7

What is injection moulding

Answer 7

Where granular plastic is heated and injected into a mould

Question 8

What is a rebate

Answer 8

A step shaped recess cut along the edge or into the face of a piece of wood

Question 9

What is a groove

Answer 9

A long narrow cut in a hard material

Question 10

What are the two causes of webbing

Answer 10

The moulds are two close together

The moulds are too high

Question 11

What happens to steel if more carbon is added

Answer 11

It becomes more brittle but also more strong

Question 12

What is a T-halving joint

Answer 12

A lap joint in the centre of a piece of wood making a T

Question 13

What is anodising

Answer 13

An electrochemical process which converts a metal surface to a metal oxide which is stronger and can be dyed

Question 14

What are the properties of oak wood

Answer 14

It’s durable
It has an attractive grain
Good water resistant properties
Stains and polishes well

Question 15

What is a Chamfer

Answer 15

A cut away to create a sloping edge on a material

Question 16

What tools are used for marking out metal

Answer 16

Scribe - to mark
Steel ruler
Odd legged callipers - to mark parallel lines
Engineers square - for marking out 90* angles
Tinsnips - for cutting thin sheets of metal, like scissors

Question 17

What are the advantages to laser cutting?

Answer 17

Precise
Can cut complex shapes
Quick
Leaves a smooth edge

Question 18

What is the process of laser cutting

Answer 18

Create a design in CAD using blue and red lines to indicate where the laser cutter should cut or etch
Send the design to the laser cutter
Make sure the bonnet is down to ensure good ventilation within the laser cutter

Question 19

What does CAM stand for

Answer 19

Computer aided manufacture

Question 20

What is a plane?

Answer 20

A hand tool for removing wood

Question 21

How can you protect wood being held in an engineers vice?

Answer 21

Scrap pieces of wood on either side

Question 22

How do you prepare wood for a finish?

Answer 22

Sand first with a rough grain and then a finer one

Question 23

What is the metal forming process?

Answer 23

Where molten metal is poured into a mould