Environmental Engineering The correct relation between theoretical oxygen demand (TOD), Biochemical oxygen demand (BOD) and Chemical oxygen demand (COD) is given by TOD > COD > BOD COD > BOD > TOD TOD > BOD > COD BOD > COD > TOD TOD > COD > BOD COD > BOD > TOD TOD > BOD > COD BOD > COD > TOD ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to Total hardness Non carbonate hardness Total alkalinity Total hardness total alkalinity Total hardness Non carbonate hardness Total alkalinity Total hardness total alkalinity ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Period of cleaning of slow sand filters is about 1 - 2 year 2 - 3 months 10 - 12 days 24 - 48 hours 1 - 2 year 2 - 3 months 10 - 12 days 24 - 48 hours ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The depression of water table in a well due to pumping will be maximum(Where ‘R’ is the radius of influence) At a distance R/2 from the well None of these Close to the well At a distance R from the well At a distance R/2 from the well None of these Close to the well At a distance R from the well ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following unit works in anaerobic conditions? Sludge digestion tank Activated sludge treatment Sedimentation tank Trickling filters Sludge digestion tank Activated sludge treatment Sedimentation tank Trickling filters ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Standard BOD is measured at 30°C - 5 day 20°C - 1 day 20°C - 5 day 25°C - 3 day 30°C - 5 day 20°C - 1 day 20°C - 5 day 25°C - 3 day ANSWER DOWNLOAD EXAMIANS APP
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