Environmental Engineering in CE TLV of ammonia, nitrogen dioxide and phenol vapor in air is __________ ppm. 100 2000 5 1000 100 2000 5 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels. 140 95 75 120 140 95 75 120 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of potable water should be between 13 to 14 4 to 5 1 to 1.5 6.5 to 8 13 to 14 4 to 5 1 to 1.5 6.5 to 8 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutants released from iron & steel industry is CO, CO₂ & SO₂ H₂S, NO & SO₃ CO₂, H₂S & NO₂ SO₃, NO₂ & CO₂ CO, CO₂ & SO₂ H₂S, NO & SO₃ CO₂, H₂S & NO₂ SO₃, NO₂ & CO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is a green house gas other than CO₂ ? All of these Methane Chlorofluro carbons (CFC) Nitrous oxide All of these Methane Chlorofluro carbons (CFC) Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water treatment, alum[Al2(SO₄)3] is used for the process of Disinfection Sedimentation Coagulation Filtration Disinfection Sedimentation Coagulation Filtration ANSWER DOWNLOAD EXAMIANS APP
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