Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 25 (Q.No. 12)
12.
Which of the following materials are used as landfill salients for the control of gas and leachate moments ?
1. Lime
2. Sand
3. Bentonite
4. Fly ash
5. Butyl rubber
Select the correct answer from the codes given below :
1, 2 and 3
4 and 5
3 and 5
1, 2 and 4
Answer: Option
Explanation:
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Discussion:
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