Environmental Engineering in CE Corrosion in boilers can be prevented by All of these Enhancing pH of feed water by adding alkali Deaeration of feed water Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion All of these Enhancing pH of feed water by adding alkali Deaeration of feed water Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of aldrin in public water supply system is about __________ μg/litre. 1097 0.5 357 17 1097 0.5 357 17 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE BOD of raw municipal sewage may be in the range of about __________ mg/litre. 150-300 2000-3000 1-2 5-10 150-300 2000-3000 1-2 5-10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water treatment plant, zeolite process is used to remove the __________ of water. Hardness Alkalinity Acidity Iron & zinc Hardness Alkalinity Acidity Iron & zinc ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust by human being causes Asphyxiation Tuberculosis Both B & C Shortness of breath Asphyxiation Tuberculosis Both B & C Shortness of breath ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main pollutant in waste water discharged from a petroleum refinery is oil (both in free and emulsified form). Free oil is removed by Aerated lagoons Biological oxygen pond Trickling filters Gravity separator having oil skimming devices Aerated lagoons Biological oxygen pond Trickling filters Gravity separator having oil skimming devices ANSWER DOWNLOAD EXAMIANS APP
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