Civil Engineering - UPSC Civil Service Exam Questions - Discussion


What is 5 days 20°C BOD equal to ?

[A]. 3 days 27°C BOD
[B]. 4 days 30°C BOD
[C]. 6 days 32°C BOD
[D]. 7 days 35°C BOD

Answer: Option A


No answer description available for this question.

Roy said: (Jul 19, 2017)  
Option A is the right answer.

Praveen said: (Sep 14, 2017)  
Yes, A is correct.

Dsp said: (Nov 28, 2017)  
Please Give explanation for option B.

Aneek said: (Jan 2, 2018)  
A is correct. I too agree.

Anjan said: (Jan 26, 2018)  
Please tell me the explanation.

Jayeeta said: (Feb 3, 2018)  
Please give explanation.

Phani said: (Apr 27, 2018)  
BOD = L(1-10^-Kd*t).
Kt=K20 (1.047)^T-20.
Let 5 days BOD at 20 = t days BOD at T.
By comparing terms, we will get the answer.

Dolly said: (Aug 8, 2018)  
A is the correct answer.

Manthan Khambhati said: (Sep 21, 2018)  
A is the right answer.

Prakr said: (May 31, 2019)  
Yes, A is correct. I agree.

Sanju said: (Jul 17, 2019)  
A is the correct answer.

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