Civil Engineering - UPSC Civil Service Exam Questions - Discussion

33. 

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:

[A]. 2, 3
[B]. 2, 3, 1
[C]. 1, 2, 3, 4
[D]. 3, 1, 2, 4

Answer: Option B

Explanation:

No answer description available for this question.

Umesh H A said: (Sep 14, 2018)  
The correct Answer is A.

Priyanka said: (Jan 16, 2021)  
A is right

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