Environmental Engineering in CE Which of the following sources is responsible for maximum air pollution? Industrial chimney exhaust Forest fire Automobiles exhaust Photochemical oxidation of organic matter Industrial chimney exhaust Forest fire Automobiles exhaust Photochemical oxidation of organic matter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels. 60 105 90 120 60 105 90 120 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The earth's atmosphere is an envelope of gases present upto a height of about __________ kms. 1000 10 2000 200 1000 10 2000 200 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most severe air pollutant? Hydrocarbons CO SO₂ NOx Hydrocarbons CO SO₂ NOx ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level heard at a distance of about 100 metres from a jet engine with after burner is about __________ decibels. 200 120 170 140 200 120 170 140 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of All of these Ozone and iodine Chlorine or its compounds Ultraviolet light for irradiation of water All of these Ozone and iodine Chlorine or its compounds Ultraviolet light for irradiation of water ANSWER DOWNLOAD EXAMIANS APP
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