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Waste Water Engineering

Waste Water Engineering
In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient,

Is only provided
Is doubled
Is not enough
Is trebled

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Waste Water Engineering
depends upon The Chezy’s constant C in the formula V = C

Roughness of sewer surface
Shape of the sewer
Size of the sewer
All listed here

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Waste Water Engineering
If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is

None of these
1 in 120
1 in 100
1 in 60

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Waste Water Engineering
Kjeldahl nitrogen is a mixture of

Organic nitrogen and ammonia
Ammonia and nitrogen
All listed here
Nitrogen and organic nitrogen

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Waste Water Engineering
If the grit in grit chambers is 4.5 million litres per day, its cleaning is done

Manually
Electrically
Mechanically
Hydraulically

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Waste Water Engineering
The rational formula for peak drainage discharge, was evolved by

All of these
Kuichling
Fruhling
Lloyd David

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