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Environmental Engineering

Environmental Engineering
Sewerage system is usually designed for

25 years
26 years
28 years
27 years

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Environmental Engineering
The overflow rate for plain sedimentation tanks is about

1500 to 2000 liters/hour/m²
1250 to 1500 liters/hour/m²
1000 to 1250 liters/hour/ m²
500 to 750 liters/hour/ m²

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Environmental Engineering
The method of analysis of distribution system in which the domestic supply is neglected and fire demand is considered is

Electrical analysis method
Equivalent pipe method
Circle method
Hardy cross method

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Environmental Engineering
The pathogens can be killed by

Oxidation
Nitrification
None of these
Chlorination

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Environmental Engineering
Hardy cross method of analysis of distribution system (i) Involves successive trials (ii) Takes economic aspects into account (iii) Is time consuming

All are correct
(i) and (ii)
(i) and (iii)
Only (i)

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Environmental Engineering
The process in which the chlorination is done beyond the break point is known as

Pre-chlorination
Post chlorination
Super chlorination
Break point chlorination

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MORE MCQ ON Environmental Engineering

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