Environmental Engineering in CE In water treatment, alum[Al2(SO₄)3] is used for the process of Sedimentation Coagulation Filtration Disinfection Sedimentation Coagulation Filtration Disinfection ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is an adsorbant used for the removal of SO₂ from gas/air? Active carbon Silica gel Limestone powder or alkalised alumina Bog iron Active carbon Silica gel Limestone powder or alkalised alumina Bog iron ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Scale formation in boiler is controlled by Keeping the pH value of feed water just below 7 Preheating of feed water Eliminating H₂S in feed water Reduction in hardness, silica & alumina in feed water Keeping the pH value of feed water just below 7 Preheating of feed water Eliminating H₂S in feed water Reduction in hardness, silica & alumina in feed water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following pollutants is not emitted during volcanic eruptions? SO₂ CO H₂S Hydrocarbons SO₂ CO H₂S Hydrocarbons 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 Coagulation and flocculation of colloids All of these Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate Oxidation of carbonaceous matter to CO₂ Coagulation and flocculation of colloids All of these Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate Oxidation of carbonaceous matter to CO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tank is a(i) Settling tank(ii) Digestion tank(iii) Aeration tank Only (i) (i) and (ii) (i) and (iii) Only (iii) Only (i) (i) and (ii) (i) and (iii) Only (iii) ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS