Environmental Engineering in CE The ratio of oxygen available to the oxygen required for stabilisation of sewage is called the Biological oxygen demand (BOD) Bacterial stability factor Relative stability Oxygen ion concentration Biological oxygen demand (BOD) Bacterial stability factor Relative stability Oxygen ion concentration 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? SO₂ Hg F NOx SO₂ Hg F NOx ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the Ionosphere Atmospheric effect Green house Global warming Ionosphere Atmospheric effect Green house Global warming ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible turbidity in potable water is __________ ppm. 250 1000 1 10 250 1000 1 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Oilish impurities present the effluent discharged from the electroplating industry is normally not removed by Chemical coagulation Centrifugation Floatation & skimming Ultrafiltration Chemical coagulation Centrifugation Floatation & skimming Ultrafiltration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrates in water in excess of 50 ppm causes Asphyxiation Tooth decay Gastroentetitis Mathenoglobenemia Asphyxiation Tooth decay Gastroentetitis Mathenoglobenemia ANSWER DOWNLOAD EXAMIANS APP
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