GS PrelimsScience and TechnologyGeneral Science2023

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?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

Correct Answer: Option A

Explanation

1. Statement 1: Carbon fibres possess high tensile strength, low weight, high stiffness, and high temperature tolerance. These properties make them ideal materials for the manufacture of components requiring strength and lightness, such as those used in automobiles (especially performance vehicles) and aircrafts. This statement is correct. 2. Statement 2: While recycling carbon fibres, particularly when embedded in composite materials, presents technical challenges, it is not impossible. Methods such as pyrolysis (thermal decomposition) and solvolysis (chemical decomposition) are used to recover carbon fibres from end-of-life products, although the properties of the recycled fibres may differ from virgin fibres. Therefore, the statement that they *cannot be recycled* is incorrect. 3. Since only statement 1 is correct, the answer is (A).

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