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 CO₂ N₂ SO₃ H₂ CO₂ N₂ SO₃ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following sources is responsible for maximum air pollution? Automobiles exhaust Industrial chimney exhaust Photochemical oxidation of organic matter Forest fire Automobiles exhaust Industrial chimney exhaust Photochemical oxidation of organic matter Forest fire ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following fine dust removal equipments is the most efficient? Scrubber Cyclone separator Electrostatic precipitator Bag filter Scrubber Cyclone separator Electrostatic precipitator Bag filter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Pick out the one which is not a chemical coagulant. Hydrated lime Ferrous sulphate Chloramine Aluminium sulphate Hydrated lime Ferrous sulphate Chloramine Aluminium sulphate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the None of these Ionosphere Stratosphere Troposphere None of these Ionosphere Stratosphere Troposphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) of CO in air is __________ ppm. 2000 5 50 5000 2000 5 50 5000 ANSWER DOWNLOAD EXAMIANS APP
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