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RVUNL_CE_Quiz 65_Revision Quiz
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The MLSS concentration in the aeration tank of extended aeration activated sludge process is 5000 mg/l. If one litre of sample settled in 30 minutes and the measuring cylinder showed a sludge volume of 200 mg/l, then the sludge volume index would be nearly:
If for diluting 25 ml of water sample in 200 ml of taste free water is required to be added to make the water sample to just loose its taste, then the flavor threshold number (FTN) will be
What is the maximum permissible limit of fluoride in drinking water?
Pick up the incorrect option regarding discharges through sewer.
If settling velocity is 1 cm/sec then corresponding surface loading in litre per day per m2 will be
Which of the following are primary air pollutants?
The leachate forms from which of the following treatment process?
What is the cause of bulking of sewage?
Anaerobic treatment is best suited for ______.
A grit chamber of dimension 15 m x 2 m x 0.8 m liquid depth flow of 800 m3/hr. Its detention time is
In extended aeration process, the system works in which phase?
Which of the following process includes chlorination of water above the break point?
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May 18AE & JE Exams