Environmental Engineering in CE __________ plant emits large amount of SO₂ as an air pollutant. Chloralkali Sulphuric acid Iron & steel Nitric acid Chloralkali Sulphuric acid Iron & steel Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main industrial source of emission of hydrogen sulphide air pollutant is Pulp and paper plant Metallurgical roasting & smelting plant Coal based thermal power plants Petroleum refineries Pulp and paper plant Metallurgical roasting & smelting plant Coal based thermal power plants Petroleum refineries ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 15 to 20 9 to 10 1 to 2 4 to 5 15 to 20 9 to 10 1 to 2 4 to 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Suspended solid present in the waste water generated in blast furnace gas cooling and cleaning plant is removed by Lagoons Filtration Biological oxygen pond Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Lagoons Filtration Biological oxygen pond Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ozone is Both B & C A secondary pollutant Impervious to ultra-violet rays A primary pollutant Both B & C A secondary pollutant Impervious to ultra-violet rays A primary pollutant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Exposure to SO₂ containing chimney gases results in the Increased drying & hardening time of paints Reduction in strength of leather & cloth Acceleration of corrosion rates of metals All of these Increased drying & hardening time of paints Reduction in strength of leather & cloth Acceleration of corrosion rates of metals All of these ANSWER DOWNLOAD EXAMIANS APP
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