Environmental Engineering in CE Which of the following is not a natural source of air pollution? Volcanic eruptions and lightening discharges None of these Photochemical oxidation of organic matter Biological decay of vegetable matter Volcanic eruptions and lightening discharges None of these Photochemical oxidation of organic matter Biological decay of vegetable matter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most efficient dust removal equipment for removal of sub-micronic dust particles from blast furnace gas? Hydrocyclone Gravity settling chamber Electrostatic precipitator Packed scrubber Hydrocyclone Gravity settling chamber Electrostatic precipitator Packed scrubber ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ozone is Impervious to ultra-violet rays Both B & C A secondary pollutant A primary pollutant Impervious to ultra-violet rays Both B & C A secondary pollutant A primary pollutant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Hardy cross method of analysis of distribution system(i) Involves successive trials(ii) Takes economic aspects into account(iii) Is time consuming All are correct (i) and (iii) (i) and (ii) Only (i) All are correct (i) and (iii) (i) and (ii) Only (i) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Iron & manganese present as pollutant in water can not be removed by Oxidation followed by settling & filtration Ion exchange process Chlorination Lime soda process or manganese zeolite process Oxidation followed by settling & filtration Ion exchange process Chlorination Lime soda process or manganese zeolite process ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about __________ decibels. 120 150 90 180 120 150 90 180 ANSWER DOWNLOAD EXAMIANS APP
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