Environmental Engineering in CE Which of the following industries discharge mercury as a pollutant? Beverage plant Chloro-alkali industry Tanneries Phosphoric acid plant Beverage plant Chloro-alkali industry Tanneries Phosphoric acid plant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of aldrin in public water supply system is about __________ μg/litre. 357 0.5 17 1097 357 0.5 17 1097 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes Poor visibility due to sky darkening Irritation in eyes All of these Respiratory trouble Poor visibility due to sky darkening Irritation in eyes All of these Respiratory trouble ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. Remains constant May increase or decrease ; depends on the chemical characteristics of polluted water Increases Decreases Remains constant May increase or decrease ; depends on the chemical characteristics of polluted water Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes Respiratory disease (e.g., asthma) Cancer Reduced crop yield Silicosis Respiratory disease (e.g., asthma) Cancer Reduced crop yield Silicosis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Corrosion in boilers can be prevented by Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion Deaeration of feed water All of these Enhancing pH of feed water by adding alkali Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion Deaeration of feed water All of these Enhancing pH of feed water by adding alkali ANSWER DOWNLOAD EXAMIANS APP
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