Environmental Engineering Facultative bacteria are able to work in Presence of oxygen only Absence of oxygen only Presence as well as in absence of oxygen Presence of water Presence of oxygen only Absence of oxygen only Presence as well as in absence of oxygen Presence of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The chemical most commonly used to increase speed of sedimentation of sewage is Sodium permanganate Sulphuric acid Lime Copper sulphate Sodium permanganate Sulphuric acid Lime Copper sulphate 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 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 At a distance R/2 from the well None of these Close to the well ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For the same solid content, if the quantity of sludge with moisture content of 98% is X, then the quantity of sludge with moisture content of 96% will be X/4 2X X X/2 X/4 2X X X/2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The percentage of chlorine in fresh bleaching powder is about 20 to 25 10 to 15 30 to 35 40 to 50 20 to 25 10 to 15 30 to 35 40 to 50 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 total alkalinity Total hardness Total alkalinity Non carbonate hardness Total hardness total alkalinity Total hardness Total alkalinity Non carbonate hardness ANSWER DOWNLOAD EXAMIANS APP
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