Environmental Engineering in CE Fluorosis is caused due to the presence of excessive amount of __________ in drinking water. Mercury Fluoride Arsenic Lead Mercury Fluoride Arsenic Lead ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Scale formation in boiler is controlled by Preheating of feed water Reduction in hardness, silica & alumina in feed water Keeping the pH value of feed water just below 7 Eliminating H₂S in feed water Preheating of feed water Reduction in hardness, silica & alumina in feed water Keeping the pH value of feed water just below 7 Eliminating H₂S in feed water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tank is a(i) Settling tank(ii) Digestion tank(iii) Aeration tank Only (iii) (i) and (ii) Only (i) (i) and (iii) Only (iii) (i) and (ii) Only (i) (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most widely used disinfectant in water treatment? Irradiation of water by ultraviolet light Chlorine Cation exchanger Coagulation Irradiation of water by ultraviolet light Chlorine Cation exchanger Coagulation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The Killer gas which caused Bhopal gas tragedy in 1984 was Carbon monoxide Phosgene Sulphur dioxide Methyl iso-cynate (MIC) Carbon monoxide Phosgene Sulphur dioxide Methyl iso-cynate (MIC) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Water filtration rate in a slow sand filter ranges from __________ litres/m²/hr. 4000 to 5000 100 to 200 10 to 20 1500 to 2500 4000 to 5000 100 to 200 10 to 20 1500 to 2500 ANSWER DOWNLOAD EXAMIANS APP
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