Environmental Engineering in CE Biological oxidation ponds remove organic matters present in the polluted water by Aerobic oxidation Using the activities of bacteria and other micro organisms Both A & B Neither A nor B Aerobic oxidation Using the activities of bacteria and other micro organisms Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Out of the following, TLV of __________ is maximum (about 500 ppm). Toluene Carbon disulphide Acetaldehyde Carbon dioxide Toluene Carbon disulphide Acetaldehyde Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following plants does not emit appreciable amount of SO₂ in atmosphere? Nitric acid plant Thermal power plant Sulphuric acid plant Petroleum refinery Nitric acid plant Thermal power plant Sulphuric acid plant Petroleum refinery ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of __________ hardness is responsible for the temporary hardness in water. Sulphate Carbonate Choride Calcium Sulphate Carbonate Choride Calcium ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not an air pollutant? Carcinogens Metallic powders Ozone Pesticides Carcinogens Metallic powders Ozone Pesticides ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The progressive warming up of the earth's surface is mainly due to the De-forestation Blanketing effect of CO₂ in the atmosphere Automobile exhaust Thickening of ozone layer De-forestation Blanketing effect of CO₂ in the atmosphere Automobile exhaust Thickening of ozone layer ANSWER DOWNLOAD EXAMIANS APP
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