WorksheetsVacuum forming
Total questions: 13
Worksheet time: 7mins
Name
Class
Date
1.
What is Vacuum Forming ?
a)
Where molten plastic is pushed along a screw into a mould
b)
Where heat, a mould and air is used to manipulate flexible plastic
c)
Where pressure is put on top of the plastic to force it into a die
2.
What material is used in Vacuum forming ?
a)
Polypropylene
b)
H.I.P.S
c)
Thermoplastic
d)
All of the above
3.
What is a thermoplastic?
a)
Plastic that doesn't melt
b)
A plastic that is constantly hot
c)
A plastic that resists heat
d)
Plastics that can be heated, formed and returned to a sheet
4.
What objects can be made from thermoplastics? Choose two
a)
yogurt pots
b)
disposable cups
c)
a water bottle
d)
plug sockets
5.
The plastic becomes ________ when heated
a)
molten
b)
a gas
c)
Flexible
d)
difficult to work with
6.
The _______ ________ is turned on to warm the plastic
a)
wood burner
b)
electric heater
c)
warm sun
d)
hot fire
7.
Why is the Vacuum pump turned off?
a)
so that the air can enter
b)
so that the plastic doesn't break
c)
so that the plastic is softened
d)
so that the plastic is sucked onto the mould
8.
What type of wood is the mould made from?
a)
MDF
b)
scotts pine
c)
plywood
d)
mahogany
9.
When do you know the plastic is ready to be formed
a)
After 3 minutes
b)
After 7 minutes
c)
When it starts to sag
d)
When the plastic is bouncy and loose
10.
Which of the following is NOT a property of vac forming plastic
a)
it is colourful
b)
it can only be formed once
c)
it is easy to clean
d)
it is inexpensive
11.
Vac forming is an industrial process
a)
True
b)
False
12.
Vac forming can be used for mass production?
a)
True
b)
false
13.
The plastic used for vac forming is recyclable
a)
True
b)
False
100 %
