Environmental Engineering in CE Presence of iron and manganese in water causes Reduction in its dissolved oxygen content Temporary hardness None of these Discoloration of bathroom fixtures Reduction in its dissolved oxygen content Temporary hardness None of these Discoloration of bathroom fixtures ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The earth's atmosphere is an envelope of gases present upto a height of about __________ kms. 200 2000 1000 10 200 2000 1000 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most widely used disinfectant in water treatment? Irradiation of water by ultraviolet light Coagulation Cation exchanger Chlorine Irradiation of water by ultraviolet light Coagulation Cation exchanger Chlorine 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? Lead Mercury Arsenic Aluminium Lead Mercury Arsenic Aluminium ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ethanolamine is an absorbant used for the removal of __________ from air/gas. Both B & C HF SO₂ H₂S Both B & C HF SO₂ H₂S 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 None of these Mufflers (silencers) Lagging of noisy duct Accoustical absorbent None of these Mufflers (silencers) ANSWER DOWNLOAD EXAMIANS APP
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