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Environmental Engineering

Environmental Engineering
The characteristics of fresh and septic sewage respectively are

Acidic and alkaline
Both alkaline
Alkaline and acidic
Both acidic

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Environmental Engineering
The type of sewer which is suitable for both combined and separate system is

Egg shaped sewer
Circular sewer
Horseshoe type sewer
Semi-elliptical sewer

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Environmental Engineering
Disinfection efficiency is

Unaffected by pH value of water
Reduced at higher pH value of water
Highest at pH value equal to 7
Increased at higher pH value of water

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Environmental Engineering
As compared to shallow wells, deep wells have

Less depth
More depth
Less discharge
More discharge

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Environmental Engineering
The working conditions in imhoff tanks are

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

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Environmental Engineering
Which of the following is not a water borne disease?

Typhoid
Cholera
Malaria
Dysentery

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