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Waste Water Engineering

Waste Water Engineering
Fresh sewage is generally

A source of objectionable odour
Acidic
Highly decomposed
Alkaline

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Waste Water Engineering
Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is?

None of these
Centrifugal pump
Pneumatic ejector
Reciprocating pump

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Waste Water Engineering
The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is

1.085
1.095
1.065
1.075

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Waste Water Engineering
The underground sewers are more subjected to

Bending force
Compressive force
Shearing force
Tensile force

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Waste Water Engineering
Dry water flow in a combined sewer, is

Storm water
Industrial sewage
Inclusive of domestic and industrial sewage but excludes storm water
Domestic sewage

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Waste Water Engineering
A safety lamp when inserted in the upper portion of a manhole causes flames. It indicates the presence of

Carbondioxide gas
Methane gas
Petrol vapours
Hydrogen sulphide gas

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