Environmental Engineering in CE Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases. Increase the dew point of Reduce SO₂ content in Catalytically convert SO₂ to SO₃ in None of these Increase the dew point of Reduce SO₂ content in Catalytically convert SO₂ to SO₃ in None of these 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 Rain Green house effect Vegetation Forestation Rain Green house effect Vegetation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Photochemical smog is formed from automobile exhaust By reaction of hydrocarbon & nitric oxide in presence of sunlight Appears only on sunny days All of these Is harmful for crops and trees also besides causing eye irritation & asthma By reaction of hydrocarbon & nitric oxide in presence of sunlight Appears only on sunny days All of these Is harmful for crops and trees also besides causing eye irritation & asthma ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called Dust Grit Powder Smoke Dust Grit Powder Smoke ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants? NOx Hg SO₂ F NOx Hg SO₂ F ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million). 5000 50 1000 2000 5000 50 1000 2000 ANSWER DOWNLOAD EXAMIANS APP
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