Environmental Engineering in CE Growth of __________ is promoted by the presence of manganese in water. Mosquitoes Micro-organisms Algae Files Mosquitoes Micro-organisms Algae Files ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Salt content in sea water is about __________ percent. 3.5 10 1 0.5 3.5 10 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most widely used disinfectant in water treatment? Chlorine Irradiation of water by ultraviolet light Cation exchanger Coagulation Chlorine Irradiation of water by ultraviolet light Cation exchanger Coagulation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust causes a disease called Bronchitis Silicosis Pneumoconiosis None of these Bronchitis Silicosis Pneumoconiosis None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sulphur dioxide present in the industrial chimney exhaust gases causes Reduction in plant's productivity owing to acid rain Respiratory & lung disease Corrosion of building materials All of these Reduction in plant's productivity owing to acid rain Respiratory & lung disease Corrosion of building materials All of these 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 Biological oxygen pond Gravity separator having oil skimming devices Aerated lagoons Trickling filters Biological oxygen pond Gravity separator having oil skimming devices Aerated lagoons Trickling filters ANSWER DOWNLOAD EXAMIANS APP
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