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Waste Water Engineering

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

Nitrites
Nitrates
Free ammonia
Aluminoid nitrogen

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Waste Water Engineering
Depletion of ozone layer in the outer atmosphere may cause

Lung cancer
Skin cancer
Bronchitis
Heart disorder

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Waste Water Engineering
The maximum spacing of manholes specified by Indian standard in sewers upto 0.3 m diameter is

45 m
20 m
30 m
75 m

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Waste Water Engineering
In olden days the type of section adopted in trunk and out fall sewers was

Horse shoe shaped
Parabolic shaped
Circular shaped
Egg shaped

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Waste Water Engineering
The drop man holes are generally provided in sewers for

Cities in plains
Large town ships
Industrial areas
Hilly town ships

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Waste Water Engineering
The sludge does not contain waste water from

Toilets
Bath rooms
Wash basins
Kitchen sinks

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MORE MCQ ON Waste Water Engineering

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