A pipe conveying sewage from plumbing system of a single building to common sewer or point of immediate disposal is called________________?

Question: From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm.
[A].

1

[B].

5

[C].

50

[D].

500

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ plant emits large amount of SO2 as an air pollutant.
[A].

Nitric acid

[B].

Sulphuric acid

[C].

Chloralkali

[D].

Iron & steel

Answer: Option B

Explanation:

No answer description available for this question.

Question: In the context of the chemical process industries, the term BOD is normally associated with the
[A].

characterisation of solid wastes.

[B].

organic concentration in gaseous effluents.

[C].

characterisation of liquid effluents.

[D].

characterisation of boiler feed water.

Answer: Option C

Explanation:

No answer description available for this question.