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Environmental Engineering

Environmental Engineering
If the average daily consumption of a city is 100,000 m³, the maximum daily consumption on peak hourly demand will be

270000 m³
100000 m³
150000 m³
180000 m³

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Environmental Engineering
The dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of

1 mg/liter
1000 mg/liter
100 mg/liter
10 mg/liter

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Environmental Engineering
The population of a town in three consecutive years are 5000, 7000 and 8400 respectively. The population of the town in the fourth consecutive year according to geometrical increase method is

9800
10100
10920
9500

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Environmental Engineering
Which of the following methods of analysis of water distribution system is most suitable for long and narrow pipe system?

Electrical analysis method
Equivalent pipe method
Circle method
Hardy cross method

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Environmental Engineering
Which of the following retards the self purification of stream?

Sunlight
Higher temperature
Satisfying oxygen demand
None of these

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Environmental Engineering
The water carriage system of collection of waste product

Requires treatment before disposal
Creates hygienic problem
All of these
Is cheaper in initial cost than dry conservancy system

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