Environmental Engineering in CE Maximum permissible residual chlorine in treated water should be __________ mg/litre. 5 to 10 2 to 3 02 to 0.3 0.001 to 0.01 5 to 10 2 to 3 02 to 0.3 0.001 to 0.01 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most major constituents of air pollutants? Oxides of nitrogen Hydrogen sulphide Oxides of sulphur Carbon monoxide Oxides of nitrogen Hydrogen sulphide Oxides of sulphur Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Green house gases blanket/block the infrared radiation from earth's surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect? H₂ SO₃ N₂ CO₂ H₂ SO₃ N₂ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal In clarifiers In sedimentation tanks equipped with mechanical scrapper By chemical coagulation In vacuum filter In clarifiers In sedimentation tanks equipped with mechanical scrapper By chemical coagulation In vacuum filter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of excess flourine in water causes Fluorosis Dental cavity Respiratory disease Tooth decay Fluorosis Dental cavity Respiratory disease Tooth decay ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Brown spots in fabrics will be caused by washing with water containing large amount of . Iron Zinc Iodine Bromine Iron Zinc Iodine Bromine ANSWER DOWNLOAD EXAMIANS APP
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