Rotational Moulding (Leaving Cert Engineering): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the key distinguishing feature of rotational moulding?
What is the key distinguishing feature of rotational moulding?
It is a pressure-free process
How many distinct stages are in the rotational moulding process?
How many distinct stages are in the rotational moulding process?
Four
What determines the wall thickness of the final product in rotational moulding?
What determines the wall thickness of the final product in rotational moulding?
The amount of powder loaded
How many axes does the mould rotate on during the heating stage?
How many axes does the mould rotate on during the heating stage?
Two axes
What cooling methods are typically used in rotational moulding?
What cooling methods are typically used in rotational moulding?
Water spray or air cooling
What percentage of rotomoulded products use polyethylene?
What percentage of rotomoulded products use polyethylene?
97%
Why is polyethylene preferred for rotational moulding?
Why is polyethylene preferred for rotational moulding?
It melts easily at low temperatures
Which material is used in liquid plastisol form for rotational moulding?
Which material is used in liquid plastisol form for rotational moulding?
PVC
Why are tooling costs low in rotational moulding?
Why are tooling costs low in rotational moulding?
The process uses no pressure
What ensures uniform wall thickness in rotational moulding?
What ensures uniform wall thickness in rotational moulding?
The rotating action
Why is dual-axis rotation essential in rotational moulding?
Why is dual-axis rotation essential in rotational moulding?
To achieve uniform wall thickness
What is the maximum capacity for water storage tanks mentioned?
What is the maximum capacity for water storage tanks mentioned?
50,000 litres