Environmental Engineering in CE Maximum permissible residual chlorine in treated water should be __________ mg/litre. 5 to 10 0.001 to 0.01 2 to 3 02 to 0.3 5 to 10 0.001 to 0.01 2 to 3 02 to 0.3 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of high concentration of ozone and smog in atmospheric air causes the Fading of dye on textiles Damage of electrical insulator on high tension power line Embrittlement & decrease of folding resistance of paper Cracking of rubber products Fading of dye on textiles Damage of electrical insulator on high tension power line Embrittlement & decrease of folding resistance of paper Cracking of rubber products ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Growth of __________ is promoted by the presence of manganese in water. Algae Files Mosquitoes Micro-organisms Algae Files Mosquitoes Micro-organisms ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Higher concentration of nitrogen dioxide in atmospheric air causes Corrosion Bronchitis Asphyxiation Cancer Corrosion Bronchitis Asphyxiation Cancer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A shallow pond in which the sewage is retained and biologically treated is called Lagoon Skimming tank Oxidation Imhoff tank Lagoon Skimming tank Oxidation Imhoff tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria. Aerobic Saphrophytic Anaerobic Parasitic Aerobic Saphrophytic Anaerobic Parasitic ANSWER DOWNLOAD EXAMIANS APP
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