Environmental Engineering in CE Which of the following is an adsorbant used for the removal of SO₂ from gas/air? Active carbon Bog iron Limestone powder or alkalised alumina Silica gel Active carbon Bog iron Limestone powder or alkalised alumina Silica gel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ozone is Impervious to ultra-violet rays A primary pollutant Both B & C A secondary pollutant Impervious to ultra-violet rays A primary pollutant Both B & C A secondary pollutant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called Biological oxidation Incineration None of these Composting Biological oxidation Incineration None of these Composting ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) of CO in air is __________ ppm. 5000 50 5 2000 5000 50 5 2000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Corrosion in boilers can be prevented by Deaeration of feed water Enhancing pH of feed water by adding alkali All of these Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion Deaeration of feed water Enhancing pH of feed water by adding alkali All of these Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is Fluctuation in liquid flow Boundary layer separation Pipe vibrations Cavitation Fluctuation in liquid flow Boundary layer separation Pipe vibrations Cavitation ANSWER DOWNLOAD EXAMIANS APP
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