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Waste Water Engineering

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

Kidneys
Eyes
Thyroid
Ovaries/testis

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Waste Water Engineering
The following is the physical characteristic of sewage

Odour
All listed here
Colour
Turbidity

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Waste Water Engineering
Hume steel pipes are

Steel pipes
Both B and C
Steel shell coated from outside with cement mortar
Steel shell coated from inside with cement mortar

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Waste Water Engineering
In sewage having fully oxidised organic matter, the nitrogen exists in the form of

Aluminoid nitrogen
Free ammonia
Nitrates
Nitrites

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Waste Water Engineering
Fresh sewage is generally

Acidic
Alkaline
Highly decomposed
A source of objectionable odour

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Waste Water Engineering
If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by

Chezy
Bazin
Manning
Kutter

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