Environmental Engineering in CE Corrosion in boilers can be prevented by All of these Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion Deaeration of feed water Enhancing pH of feed water by adding alkali All of these Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion Deaeration of feed water Enhancing pH of feed water by adding alkali ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following fine dust removal equipments is the most efficient? Electrostatic precipitator Cyclone separator Scrubber Bag filter Electrostatic precipitator Cyclone separator Scrubber Bag filter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ substances. Organic Radioactive Inorganic None of these Organic Radioactive Inorganic None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called Incineration Biological oxidation None of these Composting Incineration Biological oxidation None of these Composting ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE During which of the following operating conditions of an automobile, carbon monoxide content in the exhaust gas is maximum? Deaccelaration Acceleration Cruising Idle running Deaccelaration Acceleration Cruising Idle running ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Iron & manganese present in the polluted water is removed by Oxidation followed by settling & filtration Simple filtration Chemical coagulation Chlorination only Oxidation followed by settling & filtration Simple filtration Chemical coagulation Chlorination only ANSWER DOWNLOAD EXAMIANS APP
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