Environmental Engineering in CE Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes Gastritis & diarrhea Nervous depression Paralysis of muscles & loss of appetite All of these Gastritis & diarrhea Nervous depression Paralysis of muscles & loss of appetite All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Iron & manganese present as pollutant in water can not be removed by Oxidation followed by settling & filtration Lime soda process or manganese zeolite process Ion exchange process Chlorination Oxidation followed by settling & filtration Lime soda process or manganese zeolite process Ion exchange process Chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million). 1000 5000 2000 50 1000 5000 2000 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ is removed from water by lime-soda process. Foul smell and taste Iron and manganese Temporary hardness Permanent hardness Foul smell and taste Iron and manganese Temporary hardness Permanent hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The principal gas evolved from sludge digestion tank is N₂ CH₄ CO₂ CO N₂ CH₄ CO₂ CO ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE World's worst radioactive pollution was caused by nuclear reactor disaster which occured in Moscow (U.S.S.R.) Pensylvania (U.S.A.) Chernobyl (undivided U.S.S.R.) Arizona (U.S.A.) Moscow (U.S.S.R.) Pensylvania (U.S.A.) Chernobyl (undivided U.S.S.R.) Arizona (U.S.A.) ANSWER DOWNLOAD EXAMIANS APP
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