Waste Water Engineering Lead acetate test in sewer manhole is done to test the presence of Carbondioxide gas Hydrogen sulphide Methane gas Diesel vapours Carbondioxide gas Hydrogen sulphide Methane gas Diesel vapours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most effective arrangement for diverting excess storm water into a natural drainage, is Leaping weir Siphon spill way None of these Overflow weir Leaping weir Siphon spill way None of these Overflow weir ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Phenol-di-sulphuric acid Adding sulphuric acid Boiling Adding potassium permanganate Phenol-di-sulphuric acid Adding sulphuric acid Boiling Adding potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is 1 in 100 None of these 1 in 60 1 in 120 1 in 100 None of these 1 in 60 1 in 120 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient, Is doubled Is trebled Is only provided Is not enough Is doubled Is trebled Is only provided Is not enough ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sludge banks are formed if sewage is disposed of in Lakes None of these Seas Rivers Lakes None of these Seas Rivers ANSWER DOWNLOAD EXAMIANS APP
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