AQA GCSE Engineering: Engineering manufacture overview quiz quiz

A process that moves material into a new shape without cutting it away

A process that joins two parts permanently

A process that removes unwanted material to leave the required shape

A process that changes a metal's properties by heating

Milling

Drilling out holes

Filing

Injection moulding

Injection moulding, because the cost per item is very low once the mould exists

Milling, because each one of the caps can be carefully cut out individually by hand

Forging, because plastic is hammered into shape

Vacuum forming, because it needs no mould

A nut and bolt

Welding

A self-tapping screw

A machine screw

Hardening softens the blade so it bends easily, and then tempering is done afterwards to make the soft blade brittle again

Both processes only change the colour

Hardening makes the blade hard so it keeps an edge but brittle, and tempering reduces brittleness to add toughness

Hardening relieves stress and tempering refines the grain

Hardening

Tempering

Galvanising

Annealing

Coating steel with zinc to protect it from corrosion

A heat treatment process that refines the grain structure

Drawing a metal into wire

Forcing molten metal into a mould

Batch, one-off, mass, continuous

One-off, batch, mass, continuous

Continuous, mass, batch, one-off

One-off, mass, batch, continuous

$0.2$ mm

$29.8$ mm

$0.4$ mm

$60$ mm

$30.2$ mm

$30.0$ mm

$0.2$ mm

$29.8$ mm

A go/no-go gauge

A steel rule

A micrometer

Vernier callipers

To make every part perfectly identical

To check that products meet the specification, using tolerance and measuring tools

To always choose the very cheapest material available, regardless of whether parts fit

To remove the need for any tolerances