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 Chlorine or its compounds Ozone and iodine All of these Ultraviolet light for irradiation of water Chlorine or its compounds Ozone and iodine All of these Ultraviolet light for irradiation of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise levels produced during operation of fans and compressors can be reduced by using Lagging of noisy duct Accoustical absorbent Mufflers (silencers) None of these Lagging of noisy duct Accoustical absorbent Mufflers (silencers) None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust causes a disease called Silicosis Pneumoconiosis None of these Bronchitis Silicosis Pneumoconiosis None of these Bronchitis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following pollutants, if present in atmosphere is detectable by its odour? CO CO₂ SO₂ NO₂ CO CO₂ SO₂ NO₂ 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? Arsenic Aluminium Mercury Lead Arsenic Aluminium Mercury Lead ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in Iron & steel plant Food industry Municipal sewage treatment Petroleum refinery Iron & steel plant Food industry Municipal sewage treatment Petroleum refinery ANSWER DOWNLOAD EXAMIANS APP
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