UPSC CSE Prelims
Question 51
Consider the following statements :
- Carbon fibres are used in the manufacture of components used in automobiles and aircrafts.
- Carbon fibres once used cannot be recycled.
Which of the statements given above is/are correct?
View correct answer and explanation
Correct answer: A
Correct Option: A (1 only)
Explanation: Carbon fibres combine high strength with low weight and are used in vehicles and aircraft. Recovery and recycling methods exist, though recycled fibre performance may vary.
Statement / Pair / Item-wise Analysis:
1. Correct/True - Carbon-fibre composites are used in automotive and aerospace structural parts.
2. Incorrect/False - Carbon fibres can be recovered by pyrolysis, solvolysis and other recycling processes.
Option-wise Analysis:
A. Correct-exactly 1 of the 2 listed items satisfy the condition.
B. Incorrect-incorrectly includes 2 (Carbon fibres can be recovered by pyrolysis, solvolysis and other recycling processes.); omits correct item 1 (Carbon-fibre composites are used in automotive and aerospace structural parts.).
C. Incorrect-incorrectly includes 2 (Carbon fibres can be recovered by pyrolysis, solvolysis and other recycling processes.).
D. Incorrect-omits correct item 1 (Carbon-fibre composites are used in automotive and aerospace structural parts.).