Civil Engineering - Water Supply Engineering - Discussion

Discussion Forum : Water Supply Engineering - Section 8 (Q.No. 2)
2.
At break point of chlorination,
chlorine is used to oxidise
residual chloride is zero
residual chloride is maximum
residual chlorine reappears.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
10 comments Page 1 of 1.

Santosh Kumar said:   3 years ago
Residual chlorine is NOT zero at the breakpoint because combined residuals are present even (Non-Zero) at the breakpoint. See the graph if you don't get this. Thus (b) can't be the correct answer.

The right answer here is D because after breakpoint any added chlorine appears as (Free) Residual Chlorine.

Thus (free) residual chlorine reappears after breakpoint.
(3)

RAMA SHANAKAR VERMA said:   4 years ago
Yes, option B is correct.

Anirban Roy said:   5 years ago
At break point, residual is not zero as a certain chlorine always stays and hence residual chlorine is minimum. But from this point if any chlorine is added it remains as residual chlorine so D is correct.
(2)

Nehaa said:   5 years ago
I think option (B) is the correct answer.

Dhruba said:   5 years ago
Residual chloride is zero is right one.

BC PUNMIA said:   6 years ago
Yes, option B is correct because at BPC we can see there is no requirement of chlorine and from there the chlorine became the residual one so the residual chlorine reappear.

Rixu said:   6 years ago
(B) option is correct one.

Piyush said:   8 years ago
It should be B.

DEEP said:   8 years ago
(B) should be the correct answer.

Krishna said:   8 years ago
I think C is the answer.

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