Environmental Engineering in CE Fluorosis is caused due to the presence of excessive amount of __________ in drinking water. Mercury Arsenic Fluoride Lead Mercury Arsenic Fluoride Lead ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of oxidised sewage is about 13.4 7.3 6.2 1.8 13.4 7.3 6.2 1.8 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million). 2000 1000 50 5000 2000 1000 50 5000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by Both A & B Natural aeration of water stream Neither A nor B Photosynthetic action of algae Both A & B Natural aeration of water stream Neither A nor B Photosynthetic action of algae ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The commonest form of iron & manganese found in ground water as pollutant is in the form of their Chlorides Bi-carbonates Sulphides Carbonates Chlorides Bi-carbonates Sulphides Carbonates ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE What is the major constituents of waste/polluted water discharged from textile, pulp & paper, tanning, distillary, dairy and meat packing industries? None of these Natural organic products Radioactive substances Inorganic pollutants None of these Natural organic products Radioactive substances Inorganic pollutants ANSWER DOWNLOAD EXAMIANS APP
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