Waste Water Engineering For detecting the nitrates in sewage, the colour may be developed by adding None of these Potassium permanganate Phenol-di -sulphuric acid and potassium hydroxide Sulphuric acid and napthamine None of these Potassium permanganate Phenol-di -sulphuric acid and potassium hydroxide Sulphuric acid and napthamine ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of Cleaner water Recovery Degradation Active decomposition Cleaner water Recovery Degradation Active decomposition ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following resists hydrogen sulphide corrosion? Asbestos cement Glazed ware Glazed stone wares R.C.C. Asbestos cement Glazed ware Glazed stone wares R.C.C. ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The rate of accumulation of sludge per person per year, is 20 litres 25 litres 15 litres 10 litres 20 litres 25 litres 15 litres 10 litres ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the pH value of sewage is 7 None of these It is alkaline It is acidic It is neutral None of these It is alkaline It is acidic It is neutral ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage is generally A source of objectionable odour Highly decomposed Alkaline Acidic A source of objectionable odour Highly decomposed Alkaline Acidic ANSWER DOWNLOAD EXAMIANS APP
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