Ferrous Metals

Question 1

Contains 0.3% carbon and is soft and ductile

Answer 1

Mild steel

Question 2

Contains 0.7% carbon and can be forged

Answer 2

Medium carbon steel

Question 3

Contains 0.8% - 1.7% carbon and is used mostly for tools

Answer 3

High carbon steel

Question 4

Contains 0.5 % - 0.7% carbon and is used in suspension springs

Answer 4

Spring steel

Question 5

Contains 1% boron and forms an alloy

Answer 5

Boron steel

Question 6

Automotive uses for high tensile steel

Answer 6

Body structure

Question 7

Light and strong metal

Answer 7

High tensile steel

Question 8

Does not withstand high temperatures

Answer 8

High speed steel

Question 9

Contains iron and reacts to magnets

Answer 9

Ferrous metal

Question 10

Does not react to magnets

Answer 10

Non ferrous metal

Question 11

Used in gearboxes and steering columns

Answer 11

Magnesium

Question 12

Lightweight and resists corrosion

Answer 12

Magnesium

Question 13

Plastic reacts to heat and then sets

Answer 13

Thermosetting

Question 14

Plastic reacts to heat and can be recycled

Answer 14

Thermoplastics

Question 15

Used in lightweight body panels and car frames

Answer 15

Carbon fibre

Question 16

Mechanical bonding is

Answer 16

Using nuts, bolts, studs etc.

Question 17

Chemical bonding is

Answer 17

Using chemical compounds such as adhesives or tapes

Question 18

Weld bonding is

Answer 18

Using MIG, TIG and oxy-acetylene

Question 19

Used to determine thread pitch

Answer 19

Thread gauge

Question 20

Used to secure wiring harnesses

Answer 20

Cable ties

Question 21

Used to secure exhaust components

Answer 21

Clamps

Question 22

Used to secure decals

Answer 22

Double sided tape

Question 23

Used to secure components near high vibration areas

Answer 23

Lockwire

Question 24

Used to secure door hinges

Answer 24

Pins

Question 25

Used to secure automotive trim and on exterior mouldings

Answer 25

Plastic body clips

Question 26

Used in large diameter holes

Answer 26

Morse taper drill

Question 27

Used in portable drills

Answer 27

Parallel shank bit

Question 28

Does NOT use morse taper drill bits

Answer 28

Drill press

Question 29

Five measurements that can be taken using a combination square

Answer 29

Depth Flatness 45 degree angle Inside and outside right angles

Question 30

Designed to cut external threads on rods

Answer 30

Split die

Question 31

Used to restore external threads

Answer 31

Die nut

Question 32

Used in bumper covers

Answer 32

Polyurethane

Question 33

High strength to weight ratio and high tolerance to heat

Answer 33

Carbon fibre

Question 34

Heated and then cooled very slowly

Answer 34

Annealing

Question 35

Heated to annealing temperature then cooled in still air

Answer 35

Normalising

Question 36

Heated and quenched in water or oil

Answer 36

Hardening

Question 37

Heating then quenching

Answer 37

Tempering

Question 38

Heated to 900°C, dipped in carbon, heated again and quenched

Answer 38

Case hardening

Question 39

Used to secure two components together and is double ended threaded

Answer 39

Stud

Question 40

Examples of mechanical locking devices

Answer 40

``` Spring washers Flat washer Speed nuts Tab nuts Split pin ```