Environmental Engineering in CE TLV of ozone (O₃) and phosgene (COCl₂) in air is __________ ppm. 0.1 100 25 1000 0.1 100 25 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fine grit present in sewage is removed in the __________ during sewage treatment. Detritus tank Trickling filter Grit chamber Skimming tank Detritus tank Trickling filter Grit chamber Skimming tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Polluted water having low BOD are most economically treated in Oxidation ponds Sludge digester Clarifier Sedimentation tanks Oxidation ponds Sludge digester Clarifier Sedimentation tanks ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The length of rectangular sedimentation tank should not be more than(Where ‘B’ is the width of the tank) 2B 8B B 4B 2B 8B B 4B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutants released from iron & steel industry is H₂S, NO & SO₃ SO₃, NO₂ & CO₂ CO, CO₂ & SO₂ CO₂, H₂S & NO₂ H₂S, NO & SO₃ SO₃, NO₂ & CO₂ CO, CO₂ & SO₂ CO₂, H₂S & NO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise levels produced during operation of fans and compressors can be reduced by using Mufflers (silencers) None of these Lagging of noisy duct Accoustical absorbent Mufflers (silencers) None of these Lagging of noisy duct Accoustical absorbent ANSWER DOWNLOAD EXAMIANS APP
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