Environmental Engineering in CE Which of the following is an adsorbant for removal of nitrogen oxides from gas/air? Bog iron (iron oxide) Pulverised limestone Silica gel Active carbon Bog iron (iron oxide) Pulverised limestone Silica gel Active carbon ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Removal of __________ is accomplished by aeration of water. Dissolved gases Suspended solids None of these Dissolved solids Dissolved gases Suspended solids None of these Dissolved solids 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 Trickling filters Biological oxygen pond Aerated lagoons Gravity separator having oil skimming devices Trickling filters Biological oxygen pond Aerated lagoons Gravity separator having oil skimming devices ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the Gravity settling chamber Cyclone separator Electrostatic precipitator Bag filter Gravity settling chamber Cyclone separator Electrostatic precipitator Bag filter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust causes a disease called None of these Bronchitis Silicosis Pneumoconiosis None of these Bronchitis Silicosis Pneumoconiosis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the best and the most effective method for the removal of organic contaminant present in the polluted water in very small quantity (say < 200 mg/litre)? Activated carbon adsorption Biological oxidation pond Lagooning Chemical coagulation Activated carbon adsorption Biological oxidation pond Lagooning Chemical coagulation ANSWER DOWNLOAD EXAMIANS APP
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