Waste Water Engineering Which one of the following statements regarding septic tanks is wrong? The minimum width of septic level is 90 cm A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The outlet invert level is kept 5 to 7.5 cm below the inlet invert level The depth of tank is kept equal to its width The minimum width of septic level is 90 cm A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The outlet invert level is kept 5 to 7.5 cm below the inlet invert level The depth of tank is kept equal to its width ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For detecting the nitrites in the sewage, the matching colour may be developed by adding Phenol-di -sulphuric acid potassium hydroxide None of these Sulphuric acid and napthamine Potassium permanganate Phenol-di -sulphuric acid potassium hydroxide None of these Sulphuric acid and napthamine Potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For providing an Indian type W.C., the R.C.C. slabs in the toilet portion Should be sunk by 20 cm Should be sunk by 50 cm Need not be sunk Should be kept 20 cm above the adjacent portion Should be sunk by 20 cm Should be sunk by 50 cm Need not be sunk Should be kept 20 cm above the adjacent portion ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The algae dies out in the zone of Degradation Active decomposition Cleaner water Recovery Degradation Active decomposition Cleaner water Recovery ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A well oxidized sewage contains nitrogen mainly as Nitrites Nitrates None of these Free ammonia Nitrites Nitrates None of these Free ammonia ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Are available in size Stoneware sewers All of these 20 cm 10 cm 15 cm All of these 20 cm 10 cm 15 cm ANSWER DOWNLOAD EXAMIANS APP
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