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UPSC Civil Service Exam Questions - Engineering

Q1:

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 :

A 1, 2 and 3

B 4 and 5

C 3 and 5

D 1, 2 and 4

ANS:C - 3 and 5

No answer description is available.