Waste Water Engineering In normal conditions, the period for sludge digestion, is 20 days 10 days 60 days 30 days 20 days 10 days 60 days 30 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the grit in grit chambers is 4.5 million litres per day, its cleaning is done Hydraulically Manually Electrically Mechanically Hydraulically Manually Electrically Mechanically ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 15 cumecs, the depth d and width are related by For drains up to d = 0.5 B B = 0.5 d B = 0.2 d d = 0.2 B d = 0.5 B B = 0.5 d B = 0.2 d d = 0.2 B ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Boiling Adding sulphuric acid Adding potassium permanganate Phenol-di-sulphuric acid Boiling Adding sulphuric acid Adding potassium permanganate Phenol-di-sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas evolved in sewers is Carbondioxide Hydrogen sulphide Methane All of these Carbondioxide Hydrogen sulphide Methane All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 5 days-biochemical oxygen demand (BOD5) is taken at a temperature of 25°C 15°C 0°C 20°C 25°C 15°C 0°C 20°C ANSWER DOWNLOAD EXAMIANS APP
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