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Waste Water Engineering

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

Heart disorder
Skin cancer
Lung cancer
Bronchitis

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

All listed here
Kinchling
Frubling
Lloyd Davis

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Waste Water Engineering
The sewage treatment units in which anaerobic decomposition of organic matter is used, are called

Sludge sedimentation tanks
Trickling filters
None of these
Imhoff tanks

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Waste Water Engineering
¾th or ¼th extra space is left in sewer pipes at maximum discharge for

All listed here
Unexpected increase in population
Low estimates of the average and maximum flows
Large scale infiltration of storm water

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Waste Water Engineering
A drop manhole is provided if

A sewer drops from a height
A branch sewer joins the main sewer at higher level
A lamp is inserted to check obstruction
None of these

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Waste Water Engineering
You are asked to design sewer pipes of diameters 0.4 m to 0.9 m at maximum flow, you will assume the sewer flow running at

Two third full
Three fourth full
Full depth
Half full

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