Environmental Engineering in CE Ethanolamine is an absorbant used for the removal of __________ from air/gas. H₂S HF SO₂ Both B & C H₂S HF SO₂ Both B & C ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In a sedimentation tank, the detention period for water ranges from __________ hours. 24 to 32 8 to 12 16 to 20 2 to 4 24 to 32 8 to 12 16 to 20 2 to 4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Nitrogen oxides (NOx) is not produced in the __________ industry. Nitric acid making Detergent Nitrogenous fertiliser Any of these Nitric acid making Detergent Nitrogenous fertiliser Any of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most practical and economical method for removal of suspended solid matter from polluted water? Chlorination Sedimentation Biological oxidation Skimming off Chlorination Sedimentation Biological oxidation Skimming off 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 90 105 120 60 90 105 120 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of potable water should be between 4 to 5 6.5 to 8 1 to 1.5 13 to 14 4 to 5 6.5 to 8 1 to 1.5 13 to 14 ANSWER DOWNLOAD EXAMIANS APP
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