Plastics Quiz. Question 1 Which type of plastics cannot be reshaped or remoulded once set?...

Plastics QuizPlastics Quiz

Question 1Question 1

Which type of plastics cannot be reshaped or remoulded once set?

Thermosetting plastics

shiny plastics

Thermoplastics brittle plastics

Incorrect answerIncorrect answer

Thermoplastics can be reshaped

because the bond between the molecules

is weak, and becomes weaker when they

are reheated.

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‘Shiny’ is a property of plastics

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‘Brittle’ is a property of plastics

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Correct answer!Correct answer!

The molecules of Thermosetting plastics are cross linked in

three dimensions and this is why they cannot be reshaped

or recycled. The bond between the molecules is very

strong. Once 'set' these plastics cannot be reheated to

soften, shape and mould.

Next question


Which of the following plastics is Which of the following plastics is NOTNOT a a Thermosetting plastic?Thermosetting plastic?

Polyurethane Epoxy resin

Polyester resin Acrylic


Polyurethane is a Thermosetting plastic.

It forms the basis of many paints and varnishes because

it is very tough and has water resistant qualities.

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Polyester resin is a Thermosetting plastic. When resins are

combined with a material such as fibre glass the result is a

very tough material that can resist impact. It is used in car

body repairs, sailing boats, corrugated sheet because of its

lightness, toughness and resistance to water.

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Epoxy resin is used as an adhesive, it is also used in

fibre reinforced plastics such as glass reinforced plastic and

graphite reinforced plastic.

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Acrylic is a Thermoplastic (Also known also as PERSPEX).

This is the most common plastic in a school workshop.

It is purchased usually in the form of sheets and comes in a

range of colours. It can be translucent (e.g. smoked),

transparent or opaque.

Next question


What does CAD stand for?

Computer Art Design

Create And Design

Computer Aided Design

Computer Aided Drawing


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Computer Aided Design is when software such as

Techsoft 2D Design is used to generate design work. It has

many advantages over drawing by hand, accuracy is one.

Can you think of any others?

Next question


What type of plastic is used to make disposable cups, cutlery, and disposable food containers?

Foamed polystyrene

High density polyethylene

Acrylic Low density polyethylene


Low density polyethylene is a Thermoplastic made from

petroleum, it is commonly used to make items such a as

playground slides, plastic bags, and plastic wraps

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High density polyethylene is a Thermoplastic made from

petroleum, it is commonly used to make items such as

folding tables, folding chairs, storgae sheds and bottle caps

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Acrylic is a Thermoplastic which is commonly used in

schools. It is also used to make items such as sinks,

baths, door handles, signs, and technical models

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Foamed polystyrene is used to make items such as

disposable cups, cutlery, and containers. Polystyrene can

be recycled, but it does not biodegrade. It is often abundant

as a form of pollution in the outdoor environment

particularly along shores and waterways

Next question


Which of these statements is correct….?

Plastic is stronger that stainless steel

Plastic is a man-made material

Plastics are relatively expensive

The first plastics were made in 1066


Plastic is not stronger that stainless steel

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Plastics are a relatively cheap material to buy

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The first plastics were made around 1860, the battle of

Hastings happened in 1066!

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Plastics are a man-made material.

They are usually oil or petroleum based.

Next question


Which statement is wrong?

Plastics are long lasting

Plastics are colourful and durable

Plastics are easy to shape

Plastics will rust if left outside


Plastics are long lasting

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Plastics are colourful and durable

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Plastics are easy to shape

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Plastics do not rust, metals which contain steel will rust

Next question


What piece of software would be used to operate the laser cutter

Techsoft 2D Design

Microsoft Publisher

Microsoft Word Adobe Macromedia Fireworks


Microsoft Word is a word processing package, it cannot be

used to operate the laser cutter

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Microsoft Publisher can be used for laying out design work,

but it cannot be used for operating the laser cutter

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Abode Macromedia Fireworks is part of a graphic designing

package called Creative Suite. It can be used to create

graphic elements, but it cannot be used to operate the

laser cutter.

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Techsoft 2D Design is used to operate the laser cutter.

Next question


Which process would you NOT use the CAM Machine (laser cutter) for?

Engraving plastic Cutting vinyl

Cutting plastic Welding plastic


The CAM Machine (laser cutter) can be used for engraving

onto a range of materials, including plastics

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The CAM Machine (laser cutter) can be used

for cutting vinyl

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The CAM Machine (laser cutter) can be used for cutting a

range of materials, including plastics

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The CAM Machine (laser cutter) cannot be used for welding

plastics. Plastics can be bonded using an adhesive, they

are not welded. Metals are welded.

Next question


What does CAM stand for?

Computer Aided Marketing

Computer Added Materials

Computer Added Manufacture

Computer Aided Manufacture


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The CAM Machine (laser cutter) cannot be used for welding

plastics. Plastics can be bonded using an adhesive, they

are not welded. Metals are welded.

Next question


Which of the following would be a good method for bonding acrylic parts together

Pritt stick Glue such as Araldyte or Tensol Cement

Double sided sticky tape

Flux


Pritt Stick is used for glueing paper and card

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Double sided tape would be difficult to apply neatly. It

would also be weak

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Flux is used for bonding metals

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Adhesives have many advantages over other methods of

joining plastics, these include:

Adhesives form an invisible joint

Adhesives join irregular shaped surfaces more easily

Adhesives form a seal as well as a bond

Next question

Well done!Well done!

You have reached the end of the quizYou have reached the end of the quiz

Now see if you can do it again with less mistakes.Now see if you can do it again with less mistakes.

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Plastics Quiz. Question 1 Which type of plastics cannot be reshaped or remoulded once set?...

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