Consider the following statements :
- 1.Carbon fibres are used in the manufacture of components used in automobiles and aircrafts.
- 2.Carbon fibres once used cannot be recycled.
Which of the statements given above is/are correct?
Show answer
Answer: A. Statement 1 is correct: carbon fibres are light and strong, so they are used in car and aircraft parts. Statement 2 is wrong: carbon fibres can be recycled, for example by pyrolysis and solvolysis, and recycled fibre is reused. So 1 only.
Watch for: Composites are hard to recycle, but 'cannot be recycled' is too absolute.
Why the other options are wrong
- B. Wrong because carbon fibres are used in vehicles and statement 2 is false.
- C. Wrong because carbon fibres can be recycled.
- D. Wrong because statement 1 is correct.
Source to check: Ministry of Textiles, Technical Textiles (National Technical Textiles Mission) materials on carbon fibre; Composites UK / CompositesWorld articles on carbon fibre recycling
Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.