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. 105 60 120 90 105 60 120 90 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ plant emits large amount of SO₂ as an air pollutant. Iron & steel Chloralkali Nitric acid Sulphuric acid Iron & steel Chloralkali Nitric acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE What are the methods of treatment & disposal of radioactive wastes? Biological methods & adsorption in ion exchange materials All of these Fixing into a solid mass with cement and sinking deep in the sea Evaporation & chemical precipitation Biological methods & adsorption in ion exchange materials All of these Fixing into a solid mass with cement and sinking deep in the sea Evaporation & chemical precipitation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust causes a disease called Bronchitis None of these Silicosis Pneumoconiosis Bronchitis None of these Silicosis Pneumoconiosis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most widely used coagulant for the treatment of turbid water? Ferric chloride Sodium aluminate Alum (aluminium sulphate) Lime Ferric chloride Sodium aluminate Alum (aluminium sulphate) Lime ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE What is the major constituents of waste/polluted water discharged from textile, pulp & paper, tanning, distillary, dairy and meat packing industries? None of these Radioactive substances Natural organic products Inorganic pollutants None of these Radioactive substances Natural organic products Inorganic pollutants ANSWER DOWNLOAD EXAMIANS APP
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