Environmental Engineering in CE The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of __________ of water. Dissolved oxygen content Vapor pressure Biological oxygen demand All of these Dissolved oxygen content Vapor pressure Biological oxygen demand All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Removal of __________ is accomplished by aeration of water. Dissolved solids Suspended solids Dissolved gases None of these Dissolved solids Suspended solids Dissolved gases None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is Left as such without any treatment Neutralised by alkali treatment Diluted with fresh water to reduce its acidity None of these Left as such without any treatment Neutralised by alkali treatment Diluted with fresh water to reduce its acidity None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not an air pollutant? Ozone Carcinogens Metallic powders Pesticides Ozone Carcinogens Metallic powders Pesticides ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The ratio of oxygen available to the oxygen required for stabilisation of sewage is called the Oxygen ion concentration Biological oxygen demand (BOD) Bacterial stability factor Relative stability Oxygen ion concentration Biological oxygen demand (BOD) Bacterial stability factor Relative stability ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Tri-sodium phosphate is used in boiler water treatment to reduce Turbidity Caustic embrittlement Suspended silica Dissolved oxygen Turbidity Caustic embrittlement Suspended silica Dissolved oxygen ANSWER DOWNLOAD EXAMIANS APP
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