Environmental Engineering in CE H₂S present in gaseous stream can be removed by adsorption on Bog iron Silica gel Active carbon Limestone powder Bog iron Silica gel Active carbon Limestone powder ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Septic tanks are used for the __________ of the deposited solids. Aerobic decomposition None of these Anaerobic decomposition Separation Aerobic decomposition None of these Anaerobic decomposition Separation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Death may occur, when SO₂ concentration in atmospheric air exceeds __________ ppm. 200 400 100 20 200 400 100 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about __________ °C/km. 1 6.5 0.05 15 1 6.5 0.05 15 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water treatment plant, zeolite process is used to remove the __________ of water. Hardness Acidity Alkalinity Iron & zinc Hardness Acidity Alkalinity Iron & zinc ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Solid content in most of the domestic sewage is about __________ percent. 0.1 5 10 0.001 0.1 5 10 0.001 ANSWER DOWNLOAD EXAMIANS APP
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