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WorksheetsRotational Moulding Quiz
Total questions: 15
Worksheet time: 8mins
What is rotational moulding ideal for making?
Metal parts
Solid products
Hollow products
Small items
What is NOT involved in rotational moulding?
Rotation
Pressure
Plastic powder
Heat
Why are moulds for rotational moulding relatively inexpensive?
They do not have to withstand pressure
They are small in size
They are made from cheap materials
They are reusable
What is placed into a mould in rotational moulding?
Plastic sheets
Plastic pellets
Plastic powder
Liquid plastic
How are the moulds moved during the process?
Rotated around a single axis
Rotated around two different axes
Shaken vigorously
Not moved at all
What happens to the plastic during the moulding process?
It dissolves
It expands
It melts and flows around the mould
It hardens immediately
What kind of products can be made using rotational moulding?
Food items
Clothing
Hollow products like tanks and kayaks
Electronics
What is a characteristic feature of products made by rotational moulding?
They are very heavy
They are made of metal
They have a hollow centre
They are always transparent
What might indicate a product was made using rotational moulding?
Metallic coating
Sharp edges
A parting line
A smooth surface
What does the presence of a parting line on a product indicate?
It indicates the product is very old
It is a design feature
It is a defect
It is where the two halves of the mould meet
How does rotational moulding affect the thickness of the product?
It ensures uniform thickness
It has no effect on thickness
It results in uneven thickness
It makes the product thicker at the bottom
What is the economic benefit of rotational moulding?
It uses less plastic
It allows for high production speed
It is suitable for short production runs
It requires no energy
What role does the rotation play in the moulding process?
It ensures the plastic covers the mould evenly
It cools the plastic down
It speeds up the production
It mixes the plastic
Why does the plastic cling to the mould as it cools?
Because of the rotation
Due to gravity
Because of the chemical properties of the plastic
Because it is magnetized
What is a common use for products made by rotational moulding?
Clothing manufacturing
Building construction
Electronic casings
Water and chemical storage
