Environmental Engineering in CE Infective bacteria in water is killed by the __________ process. Aeration Sterilisation None of these Disinfection Aeration Sterilisation None of these Disinfection ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the Forestation Green house effect Rain Vegetation Forestation Green house effect Rain Vegetation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Death may occur, when SO₂ concentration in atmospheric air exceeds __________ ppm. 200 20 400 100 200 20 400 100 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? SO₃ H₂ N₂ CO₂ SO₃ H₂ N₂ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise produced by cooling fans (employed in air cooled heat exchangers or cooling tower) is mainly caused due to the turbulence created by blade passage through air. It can be reduced by use of a slower fan Of increased diameter Both A & B Neither A nor B With greater number of blades Of increased diameter Both A & B Neither A nor B With greater number of blades ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of __________ of water. Dissolved oxygen content All of these Vapor pressure Biological oxygen demand Dissolved oxygen content All of these Vapor pressure Biological oxygen demand ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS