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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

180000 m³
270000 m³
150000 m³
100000 m³

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Environmental Engineering
Dissolved oxygen in streams is

Maximum at noon
Maximum at midnight
Same throughout the day
Minimum at noon

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Environmental Engineering
Which of the following causes a decrease in per capita consumption?

Hotter climate
Good quality of water
Better standard of living of the people
Use of metering system

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Environmental Engineering
The characteristics of fresh and septic sewage respectively are

Both alkaline
Acidic and alkaline
Alkaline and acidic
Both acidic

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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

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

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Environmental Engineering
Select the correct relationship between porosity (N), specific yield (y) and specific retention (R)

R = N + y
N = y + R
y = N + R
R > (N + y)

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