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Waste Water Engineering

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

1.095
1.085
1.065
1.075

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Waste Water Engineering
The liquid wastes from kitchens, bath rooms and wash basins, is not called

None of these
Liquid waste
Sewage
Sullage

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Waste Water Engineering
5 days-biochemical oxygen demand (BOD5) is taken at a temperature of

25°C
20°C
0°C
15°C

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Waste Water Engineering
The presence of free ammonia in sewage, is detected by

Boiling
Adding potassium permanganate
Phenol-di-sulphuric acid
Adding sulphuric acid

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Waste Water Engineering
In a sludge tank, the gas mainly produced, is

Carbon dioxide
Hydrogen
Oxygen
Nitrogen

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Waste Water Engineering
For estimating the peak run off the rational formula Q = 0.0278 KpA was evolved by

Kinchling
All listed here
Frubling
Lloyd Davis

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