Environmental Engineering in CE Maximum permissible limit of mercury in human blood is __________ micrograms/100 c.c. 1 7 19 82 1 7 19 82 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, its sedimentation is speeded up by commonly adding Hydrochloric acid Sodium sulphate Copper sulphate Lime Hydrochloric acid Sodium sulphate Copper sulphate Lime ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ozone is A primary pollutant A secondary pollutant Impervious to ultra-violet rays Both B & C A primary pollutant A secondary pollutant Impervious to ultra-violet rays Both B & C ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. May increase or decrease ; depends on the chemical characteristics of polluted water Remains constant Increases Decreases May increase or decrease ; depends on the chemical characteristics of polluted water Remains constant Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The maximum CO₂ is emitted into the atmosphere by Combustion Trees Urea Biomass burning Combustion Trees Urea Biomass burning ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE If the coli form bacteria is present in a sample of water, then the coli-form test to be conducted is(i) Presumptive coli-form test(ii) Confirmed coli-form test(iii) Completed coli-form test All (i), (ii) and (iii) Both (i) and (ii) Only (i) Both (i) and (iii) All (i), (ii) and (iii) Both (i) and (ii) Only (i) Both (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
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