Environmental Engineering in CE Which of the following pollutants is absent in the emissions from a fertiliser plant ? SO₂ & SO₃ NO₂ NH₃ CO SO₂ & SO₃ NO₂ NH₃ CO ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most widely used coagulant for the treatment of turbid water? Lime Alum (aluminium sulphate) Ferric chloride Sodium aluminate Lime Alum (aluminium sulphate) Ferric chloride Sodium aluminate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in 'gas chamber' is about __________ ppm. 10-100 100-1000 100-200 10-100 100-1000 100-200 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of __________ of water. Vapor pressure Dissolved oxygen content All of these Biological oxygen demand Vapor pressure Dissolved oxygen content All of these Biological oxygen demand ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The density of the gases (present in air) decreases with increasing altitude to such an extent, that about 70% of the mass of atmospheric air is found in the lower 5 km. of the atmosphere. This lower region of atmosphere is called the Troposphere None of these Stratosphere Ionosphere Troposphere None of these Stratosphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ plant emits large amount of SO₂ as an air pollutant. Sulphuric acid Iron & steel Nitric acid Chloralkali Sulphuric acid Iron & steel Nitric acid Chloralkali ANSWER DOWNLOAD EXAMIANS APP
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