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ENVIRONMENTAL ENGINEERING

Environmental Engineering
A sewer that receives the discharge of a number of house sewers is called

Intercepting sewer
House sewer
Lateral sewer
Sub-main sewer

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Environmental Engineering
The working conditions in imhoff tanks are

Anaerobic only
Aerobic only
anaerobic in lower compartment and aerobic in upper compartment
Aerobic in lower compartment and anaerobic in upper compartment

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Environmental Engineering
In chlorination, with the rise in temperature of water, death rate of bacteria

None of these
Increases
Decreases
Remains unaffected

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Environmental Engineering
Sewage treatment units are designed for

Average flow only
Minimum flow only
Maximum flow only
Maximum and minimum flow

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Environmental Engineering
Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the

Turbidity in water
Hardness in water
Residual chlorine in water
Dissolved oxygen in water

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