Environmental Engineering in CE Deaeration of high pressure boiler feed water is done to reduce Its silica content Foaming from boilers Its dissolved oxygen content Caustic embrittlement Its silica content Foaming from boilers Its dissolved oxygen content Caustic embrittlement ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Exposure to small amount of __________ results in high blood pressure & heart disease in human beings. Hydrogen sulphide Asbestos Cadmium Mercury Hydrogen sulphide Asbestos Cadmium Mercury ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Disinfection of water is done to remove Color Foul odour Bad taste Bacteria Color Foul odour Bad taste Bacteria ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of N₂ in contaminated air at which it acts as a natural asphyxant is ≥ __________ percent. 84 80 92 88 84 80 92 88 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Death may occur, when SO₂ concentration in atmospheric air exceeds __________ ppm. 100 400 200 20 100 400 200 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate Coagulation and flocculation of colloids Oxidation of carbonaceous matter to CO₂ All of these Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate Coagulation and flocculation of colloids Oxidation of carbonaceous matter to CO₂ All of these ANSWER DOWNLOAD EXAMIANS APP
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