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 Enhancing pH of feed water by adding alkali Deaeration of feed water All of these Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion Enhancing pH of feed water by adding alkali Deaeration of feed water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of dissolved impurities of __________ is responsible for the red brownish color of water. Bi-carbonates Iron & manganese Arsenic Carbonates Bi-carbonates Iron & manganese Arsenic Carbonates ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The average thickness of ozone layer in stratosphere is about __________ dobson unit (DU). 750 230 1500 20 750 230 1500 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fluorosis is caused due to the presence of excessive amount of __________ in drinking water. Lead Arsenic Fluoride Mercury Lead Arsenic Fluoride Mercury ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ substances present in sewage are removed in grit chamber during sewage treatment. Organic Dissolved Fatty Inorganic Organic Dissolved Fatty Inorganic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE What is the major constituents of waste/polluted water discharged from textile, pulp & paper, tanning, distillary, dairy and meat packing industries? Radioactive substances Inorganic pollutants None of these Natural organic products Radioactive substances Inorganic pollutants None of these Natural organic products ANSWER DOWNLOAD EXAMIANS APP
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