Environmental Engineering in CE 'Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the Burning of domestic fuel Automobiles exhaust Photochemical reaction in polluted atmosphere Industrial chimney exhaust Burning of domestic fuel Automobiles exhaust Photochemical reaction in polluted atmosphere Industrial chimney exhaust ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE White smoke coming out of the chimney of a furnace indicates the use of Gaseous fuel in the furnace Very high excess air Low excess air Liquid fuel in the furnace Gaseous fuel in the furnace Very high excess air Low excess air Liquid fuel in the furnace ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following acts as a natural source of air pollution? Deforestation None of these Forest fire Volcanic eruption Deforestation None of these Forest fire Volcanic eruption ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Atmospheric pollution caused by the exhaust gas of supresonic transport air-crafts is mostly in the atmospheric region called Troposphere Stratosphere Thermosphere Mesosphere Troposphere Stratosphere Thermosphere Mesosphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is a secondary air pollutant? Dust particles Nitrogen dioxide Sulphur dioxide Photochemical smog Dust particles Nitrogen dioxide Sulphur dioxide Photochemical smog ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most severe air pollutant? Hydrocarbons CO NOx SO₂ Hydrocarbons CO NOx SO₂ ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS