Civil Engineering - Waste Water Engineering - Discussion

43. 

Lead acetate test in sewer manhole is done to test the presence of

[A]. Methane gas
[B]. Hydrogen sulphide
[C]. Carbondioxide gas
[D]. Diesel vapours.

Answer: Option B

Explanation:

No answer description available for this question.

Anirban Roy said: (Nov 14, 2020)  
Flamed Lamp entered in manhole:

Explodes then the presence of petrol vapour.
Burns into flame then the presence of methane.
Extinguished then presence of CO2.
Lead acetate turns black due to lead sulfide.

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