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PSC Civil Engg: Environmental Quiz 4

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Question 1

Which one of the following forms of chlorine has no disinfecting property?

Question 2

A city has a population of 10, 00,000. Average water consumption of the people is 270 lpcd, then the maximum hourly demand in MLD is

Question 3

A water sample has a pH of 9.25. The concentration of hydroxyl ions in the water sample is

Question 4

The excess sludge quantity will ______ with the increasing F/M ratio, and ______ with temperature.

Question 5

Total Kjeldahal Nitrogen (TKN) concentration (mg/L as N) in domestic sewage is the sum of the concentration of :
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Jan 7ESE & GATE CE