Module 2 — Materials and their recovery routes

Module quiz

5 questions on Module 2 — Materials and their recovery routes. Answer them all, then check your score before moving on. 4 correct or more is a pass. Your best score is saved on this device, and to your account when you are signed in. This is a self-check, not an accredited assessment.

1. 1. What happens to fibre length in mechanical recycling?

   It is unchanged, which is why the route is preferredIt increases as fibres are re-drawnIt shortens, which limits how much recycled content a spinnable yarn can carryIt only matters for synthetic fibres

2. 2. Chemical recycling of polyester differs from mechanical recycling mainly because it

   Breaks the polymer back to monomer or oligomer, so fibre length is not the constraintRequires no energy inputWorks on any mixed waste stream without sortingProduces a fibre that cannot be dyed

3. 3. Why is fabric construction relevant to recyclers, not just to performance?

   It changes the colour fastness of the recovered fibreConstruction determines how easily fabric can be opened and how much fibre survives shreddingRecyclers legally must record constructionWoven fabric is always rejected

4. 4. A garment is 60% cotton / 40% recycled polyester. What is the most accurate statement?

   It is fully circular because it contains recycled contentRecycled content and recoverability are different things — the blend still limits future recoveryThe cotton can be recovered without affecting the polyesterBlended fabrics always outperform single-fibre ones environmentally

5. 5. Which output is the realistic destination for most mechanically recycled post-consumer textile today?

   Like-for-like apparel fabric at full recycled contentMonomer for new polyesterLower-value applications such as insulation, wipes and non-wovensDirect reuse without processing