Environmental Engineering in CE __________ is removed from water by lime-soda process. Permanent hardness Iron and manganese Temporary hardness Foul smell and taste Permanent hardness Iron and manganese Temporary hardness Foul smell and taste ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not an air pollutant? Metallic powders Pesticides Ozone Carcinogens Metallic powders Pesticides Ozone Carcinogens ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools). 25-30 43832 43961 15-20 25-30 43832 43961 15-20 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. 105 90 120 60 105 90 120 60 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes Reduced strength of textiles Corrosion, tarnishing & soiling of metals All of these Fading of dyes on textiles Reduced strength of textiles Corrosion, tarnishing & soiling of metals All of these Fading of dyes on textiles ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Green house effect is accentuated by Deforestation All of these Rapid industrialisation Increased transportation activity Deforestation All of these Rapid industrialisation Increased transportation activity ANSWER DOWNLOAD EXAMIANS APP
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