Environmental Engineering in CE A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth's atmosphere, which absorbs it. Carbon dioxide Hydrogen Ozone None of these Carbon dioxide Hydrogen Ozone None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Removal of __________ results from the disinfection of water. Turbidity Hardness Odour Bacteria Turbidity Hardness Odour Bacteria ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A man exposed to excessive noise level in the working environment may suffer from All of these Hearing loss Nervousness & fatigue Rupture of ear drum All of these Hearing loss Nervousness & fatigue Rupture of ear drum ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Radioactive substances present in the polluted water stream can be removed by None of these Coagulation and filtration Adsorption in ion exchange materials Biological oxygen treatment None of these Coagulation and filtration Adsorption in ion exchange materials Biological oxygen treatment 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 Ultraviolet light for irradiation of water Ozone and iodine Chlorine or its compounds All of these Ultraviolet light for irradiation of water Ozone and iodine Chlorine or its compounds ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Reingleman chart No. 2 corresponds to __________ percent black smoke. 80 20 10 40 80 20 10 40 ANSWER DOWNLOAD EXAMIANS APP
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