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 15-20 43961 25-30 43832 15-20 43961 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 Exposure to small amount of __________ results in high blood pressure & heart disease in human beings. Mercury Asbestos Cadmium Hydrogen sulphide Mercury Asbestos Cadmium Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ozone is A primary pollutant Both B & C Impervious to ultra-violet rays A secondary pollutant A primary pollutant Both B & C Impervious to ultra-violet rays A secondary pollutant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE __________ substances present in sewage are removed in grit chamber during sewage treatment. Fatty Organic Dissolved Inorganic Fatty Organic Dissolved Inorganic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Oceans act as sinks for atmospheric gases including carbon dioxide whose concentration in the atmosphere is increased by the Vegetation Forestation Green house effect Rain Vegetation Forestation Green house effect Rain ANSWER DOWNLOAD EXAMIANS APP
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