Civil Engineering - UPSC Civil Service Exam Questions - Discussion

Discussion Forum : UPSC Civil Service Exam Questions - Section 5 (Q.No. 4)

UPSC Civil Service Exam Questions

BOD is preferred to COD as an index of sewage concentration because

BOD represents both carbonaceous and nitrogenous organic matter while COD may indicate carbonaceous matter only

BOD test is easier to perform and gives more reliable result

BOD relates specifically to putrescible organic matter which is the most objectionable sewage constituent

COD relates to the impurities which can only removed by chemical treatment which is expensive

Answer: Option

Explanation:

No answer description is available. Let's discuss.

Discussion:

4 comments Page 1 of 1.

Tinku tastogi said: 6 years ago

I too agree. It's C.

Dolly said: 8 years ago

It's c. I also agree.

Shiva said: 8 years ago

Yes, it's option C.

Roy said: 8 years ago

I think it should be C.

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