Environmental Engineering in CE TLV of lead for public sewer/waste water is about __________ ppm. 1 150 25 650 1 150 25 650 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Siderosis is a disease caused by the inhalation of __________ dust. Silica None of these Iron Coal Silica None of these Iron Coal ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrates in water in excess of 50 ppm causes Tooth decay Asphyxiation Mathenoglobenemia Gastroentetitis Tooth decay Asphyxiation Mathenoglobenemia Gastroentetitis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels. 90 105 120 60 90 105 120 60 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE What are the methods of treatment & disposal of radioactive wastes? Fixing into a solid mass with cement and sinking deep in the sea Evaporation & chemical precipitation All of these Biological methods & adsorption in ion exchange materials Fixing into a solid mass with cement and sinking deep in the sea Evaporation & chemical precipitation All of these Biological methods & adsorption in ion exchange materials ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, its sedimentation is speeded up by commonly adding Sodium sulphate Copper sulphate Hydrochloric acid Lime Sodium sulphate Copper sulphate Hydrochloric acid Lime ANSWER DOWNLOAD EXAMIANS APP
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