UPSC Civil Service Exam Questions - Civil Engineering Questions and Answers

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Discussion :: UPSC Civil Service Exam Questions

The following are the sewage treatment processes :
1. Primary sedimentation
2. Screening
3. Grit removal
4. Secondary sedimentation.
When only preliminary treatment is to be given for sewage, select the required treatment proceses including their correct sequence from the codes given below:

2, 3

2, 3, 1

1, 2, 3, 4

3, 1, 2, 4

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