Understanding Vacuum Forming Process

What is the first step in the vacuum forming process?

• Placing the plastic sheet over the mould

• Heating the plastic sheet until it becomes soft

• Applying vacuum to the mould

• Removing the formed plastic from the mould

Which material is most commonly used in vacuum forming?

• Glass

• Wood

• Thermoplastic sheets

• Metal

Why is it important to wear heat-resistant gloves during vacuum forming?

• To keep hands clean

• To protect hands from sharp edges

• To protect hands from hot plastic and equipment

• To improve grip

What is the main advantage of vacuum forming compared to injection moulding?

• It is faster for large production runs

• It is less expensive for small quantities

• It produces more detailed parts

• It uses less electricity

Which of the following is a limitation of vacuum forming?

• Only simple shapes can be made

• It can form metal parts

• It is suitable for making car engines

• It always produces perfect results

What should you do if you accidentally touch the hot plastic during vacuum forming?

• Ignore it

• Immediately cool the area with cold water and inform your teacher

• Rub it with a cloth

• Continue working as normal

Which of the following is NOT a safety precaution in vacuum forming?

• Wearing safety goggles

• Keeping long hair tied back

• Eating food near the machine

• Wearing an apron

What happens to the plastic sheet when the vacuum is applied?

• It hardens instantly

• It is sucked tightly over the mould

• It melts completely

• It changes colour

Which of the following is an advantage of vacuum forming?

• It can only be used once

• It is suitable for making prototypes

• It requires expensive moulds

• It is very slow

Why must the mould have small holes in it during vacuum forming?

• To let air escape and help the plastic form tightly around the mould

• To make the mould lighter

• To cool the plastic faster

• To make the mould look better