Waste Water Engineering The moisture content of sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is 0.25 0.5 0.1 0.05 0.25 0.5 0.1 0.05 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering As compared to fresh river water, sea water contains oxygen 20% less 10% more 10% less 20% more 20% less 10% more 10% less 20% more 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 None of these 1 in 120 1 in 60 1 in 100 None of these 1 in 120 1 in 60 1 in 100 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following statements regarding septic tanks is wrong? 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 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 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering During purification process of sewage the gas given off, is Hydrogen Carbon dioxide Ammonia All listed here Hydrogen Carbon dioxide Ammonia All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a trickling filter Biological action is used Neither A nor B Filtration process is used Both A and B Biological action is used Neither A nor B Filtration process is used Both A and B ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS