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Environmental Engineering

Environmental Engineering
Sewage treatment units are normally designed for

15 - 28 years
5 - 10 years
28 - 30 years
15 - 20 years

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Environmental Engineering
Average rate of water consumption per head per day as per Indian Standard is

100 liters
165 liters
200 liters
135 liters

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Environmental Engineering
Which of the following sewers is preferred for combined system of sewage?

Rectangular sewer
Circular sewer
None of these
Egg shaped sewer

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Environmental Engineering
Corrosion in concrete sewers is caused by

Nitrogen
Chlorine
Dissolved oxygen
Septic conditions

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Environmental Engineering
The type of valve which allows water to flow in one direction but prevents its flow in the reverse direction is

Air relief valve
Reflux valve
Sluice valve
Pressure relief valve

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Environmental Engineering
If the time of concentration is 9 minutes, then the intensity of rainfall according to British Ministry of Health formula will be

4 mm/hr
10 mm/hr
40 mm/hr
20 mm/hr

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MORE MCQ ON Environmental Engineering

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