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Waste Water Engineering

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

Thyroid
Kidneys
Eyes
Ovaries/testis

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Waste Water Engineering
In sewage, the solids in mg per litre is

1500 to 2000
1000 to 1500
500 to 1000
100 to 500

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Waste Water Engineering
‘Cowl’ is provided at

First step in manhole
Upper end of the manhole
Lower end of ventilating column
Upper end of ventilating column

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Waste Water Engineering
The minimum diameter of sewer to be adopted is

12.5 cm
10 cm
15 cm
25 cm

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

Carbondioxide gas
Methane gas
Diesel vapours
Hydrogen sulphide

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Waste Water Engineering
In areas where rainy season is limited to a few months, the type of sewerage system recommended is

Combined system
None of these
Partially separate system
Separate system

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