Environmental Engineering in CE Maximum allowable concentration of CO₂ in air for safe working is __________ ppm (parts per million). 5000 50 2000 1000 5000 50 2000 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following gases is having the widest explosion limit (about 2 to 81% gas in gas-air mixture), rendering it the property of the most explosive gas? Acetylene Ammonia Carbon monoxide Hydrogen Acetylene Ammonia Carbon monoxide Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold Limit Value (TLV) is the maximum allowable concentration (i.e. safe limit) of pollutants in air. Safe limit for SO₂ in air is __________ ppm. 5 500 1000 2000 5 500 1000 2000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Higher concentration of nitrogen dioxide in atmospheric air causes Asphyxiation Cancer Bronchitis Corrosion Asphyxiation Cancer Bronchitis Corrosion 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 F Hg SO₂ NOx F Hg SO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the Both B and C Catalytic conversion Green house effect Global warming Both B and C Catalytic conversion Green house effect Global warming ANSWER DOWNLOAD EXAMIANS APP
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