Environmental Engineering in CE The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant? Chlorine Benzene hexachloride Alkalis Alkyl benzene sulphonate (ABS) Chlorine Benzene hexachloride Alkalis Alkyl benzene sulphonate (ABS) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of iron and manganese in water causes None of these Temporary hardness Discoloration of bathroom fixtures Reduction in its dissolved oxygen content None of these Temporary hardness Discoloration of bathroom fixtures Reduction in its dissolved oxygen content ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 'Particulate' air pollutants are finely divided solids and liquids. Which of the following is not a 'particulate'? Dust & mists Smoke & fumes Photochemical smog & soot None of these Dust & mists Smoke & fumes Photochemical smog & soot None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Infective bacteria in water is killed by the __________ process. Disinfection None of these Aeration Sterilisation Disinfection None of these Aeration Sterilisation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lagooning process is mainly a means of the Sludge disposal None of these Biological treatment of wastes Reduction of excessive flow in sewers Sludge disposal None of these Biological treatment of wastes Reduction of excessive flow in sewers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Beyond what concentration of H₂S in air, acute danger to human life exists? 700 ppm 300 ppm 100 ppm 50 ppm 700 ppm 300 ppm 100 ppm 50 ppm ANSWER DOWNLOAD EXAMIANS APP
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