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Waste Water Engineering

Waste Water Engineering
Which one of the following part of human body withstands minimum radiation?

Thyroid
Eyes
Kidneys
Ovaries/testis

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Waste Water Engineering
The effluent of a septic tank is

None of these
Fit for discharge into any open drain
Foul and contains dissolved and suspended solids
As good as that from a complete treatment

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Waste Water Engineering
If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains

Hydrogen sulphide
Oxygen
Carbon dioxide
Methane

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Waste Water Engineering
Imhoff cone is used to determine

Dissolved solids
Settleable solids
Suspended solids
None of these

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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?

Centrifugal pump
Pneumatic ejector
None of these
Reciprocating pump

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Waste Water Engineering
A sewer running partially full and hurried with back filled, fails in compression due to

Weight of the back fill
Superimposed traffic loads
Weight of the pipe
All listed here

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