Environmental Engineering in CE Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases. Catalytically convert SO₂ to SO₃ in None of these Increase the dew point of Reduce SO₂ content in Catalytically convert SO₂ to SO₃ in None of these Increase the dew point of Reduce SO₂ content in ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels. 185 105 135 160 185 105 135 160 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 Both (i) and (iii) Both (i) and (ii) Only (i) All (i), (ii) and (iii) Both (i) and (iii) Both (i) and (ii) Only (i) All (i), (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Removal of __________ is accomplished by aeration of water. Dissolved gases Dissolved solids None of these Suspended solids Dissolved gases Dissolved solids None of these Suspended solids ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundaries causes Asphyxiation (suffocation) Shortness of breath Tuberculosis All of these Asphyxiation (suffocation) Shortness of breath Tuberculosis All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The main industrial source of emission of hydrogen sulphide air pollutant is Petroleum refineries Metallurgical roasting & smelting plant Pulp and paper plant Coal based thermal power plants Petroleum refineries Metallurgical roasting & smelting plant Pulp and paper plant Coal based thermal power plants ANSWER DOWNLOAD EXAMIANS APP
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