Environmental Engineering in CE Presence of __________ in water stream are deleterious to aquatic life. Soluble and toxic organics Heavy metals and cynides All of these Suspended solids Soluble and toxic organics Heavy metals and cynides All of these Suspended solids ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The permissible color for domestic water supply is __________ ppm. 1 20 1000 100 1 20 1000 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE World's worst radioactive pollution was caused by nuclear reactor disaster which occured in Arizona (U.S.A.) Moscow (U.S.S.R.) Chernobyl (undivided U.S.S.R.) Pensylvania (U.S.A.) Arizona (U.S.A.) Moscow (U.S.S.R.) Chernobyl (undivided U.S.S.R.) Pensylvania (U.S.A.) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main pollutant in waste water discharged from a petroleum refinery is oil (both in free and emulsified form). Free oil is removed by Trickling filters Biological oxygen pond Aerated lagoons Gravity separator having oil skimming devices Trickling filters Biological oxygen pond Aerated lagoons Gravity separator having oil skimming devices ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Water effluent generated in printing industry is decolourised by Electrolytic decomposition Adsorption Ion exchange technique Reverse osmosis Electrolytic decomposition Adsorption Ion exchange technique Reverse osmosis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant? Aluminium Arsenic Lead Mercury Aluminium Arsenic Lead Mercury ANSWER DOWNLOAD EXAMIANS APP
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