Environmental Engineering in CE Which of the following processes is involved in the biochemical treatment of sewage effluents? Oxidation Fermentation Dehydration Reduction Oxidation Fermentation Dehydration Reduction 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 60 105 120 90 60 105 120 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Out of the following, TLV of __________ is maximum (about 500 ppm). Toluene Carbon dioxide Acetaldehyde Carbon disulphide Toluene Carbon dioxide Acetaldehyde Carbon disulphide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Aerosols present in atmospheric air may be Negatively charged Neutral Positively charged Combination of all A, B & C Negatively charged Neutral Positively charged Combination of all A, B & C ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The pH value of potable water should be between 6.5 to 8 1 to 1.5 13 to 14 4 to 5 6.5 to 8 1 to 1.5 13 to 14 4 to 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inorganic impurities causing water pollution is Protein Fats Salts of metals Carbohydrates Protein Fats Salts of metals Carbohydrates ANSWER DOWNLOAD EXAMIANS APP
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