Environmental Engineering in CE Noise pollution level in a chemical plant is expressed in None of these Roentgen Hertz Decibel None of these Roentgen Hertz Decibel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of high concentration of ozone and smog in atmospheric air causes the Embrittlement & decrease of folding resistance of paper Fading of dye on textiles Cracking of rubber products Damage of electrical insulator on high tension power line Embrittlement & decrease of folding resistance of paper Fading of dye on textiles Cracking of rubber products Damage of electrical insulator on high tension power line ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes Cancer Reduced crop yield Silicosis Respiratory disease (e.g., asthma) Cancer Reduced crop yield Silicosis Respiratory disease (e.g., asthma) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is a green house gas other than CO₂ ? Chlorofluro carbons (CFC) All of these Methane Nitrous oxide Chlorofluro carbons (CFC) All of these Methane Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fine grit present in sewage is removed in the __________ during sewage treatment. Trickling filter Skimming tank Grit chamber Detritus tank Trickling filter Skimming tank Grit chamber Detritus tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lagoons used for purification of polluted water Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre All of these Use micro-organisms/bacteria in presence of dissolved oxygen Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre All of these Use micro-organisms/bacteria in presence of dissolved oxygen ANSWER DOWNLOAD EXAMIANS APP
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