Environmental Engineering in CE Foul odour and bad taste of water is removed by treating with Alum Bleaching powder Copper sulphate Activated carbon Alum Bleaching powder Copper sulphate Activated carbon ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A shallow pond in which the sewage is retained and biologically treated is called Oxidation Skimming tank Lagoon Imhoff tank Oxidation Skimming tank Lagoon Imhoff tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Water effluent generated in printing industry is decolourised by Adsorption Reverse osmosis Electrolytic decomposition Ion exchange technique Adsorption Reverse osmosis Electrolytic decomposition Ion exchange technique ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Coal washing waste water containing about 3% suspended solids (comprising of clay, slate, stone etc.) is treated for solid particles removal In clarifiers In sedimentation tanks equipped with mechanical scrapper By chemical coagulation In vacuum filter In clarifiers In sedimentation tanks equipped with mechanical scrapper By chemical coagulation In vacuum filter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm. 500 5 50 1 500 5 50 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is an adsorbant used for the removal of SO₂ from gas/air? Silica gel Bog iron Limestone powder or alkalised alumina Active carbon Silica gel Bog iron Limestone powder or alkalised alumina Active carbon ANSWER DOWNLOAD EXAMIANS APP
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